/* ==========================================================================
   MONOS ALFA LAB - ACADEMIC RESEARCH & INSTITUTIONAL DESIGN SYSTEM
   Inspiración: Hogeschool Leiden / European Applied Sciences Research Institute
   Paleta: Crisp White, Warm Paper, Leiden Academic Green, Warm Terracotta/Amber & Sand
   ========================================================================== */

:root {
    /* Modo Claro (Predeterminado - Estilo Académico Leiden) */
    --color-bg: #faf9f6;                /* Papel blanco cálido / Lino universitario */
    --color-bg-secondary: #f2efe9;      /* Piedra caliza / Arena suave */
    --color-bg-card: #ffffff;           /* Blanco puro institucional */
    --color-bg-card-hover: #f7f5ef;     /* Hover suave */
    --color-border: #e2ded6;            /* Borde sobrio de 1px */
    --color-border-hover: #c9c3b6;      /* Borde activo */
    
    /* Tipografía */
    --color-text-primary: #121915;      /* Carbón vegetal profundo / Altísima legibilidad */
    --color-text-secondary: #3d4f45;    /* Gris oliva / Pizarra académica */
    --color-text-muted: #6b7d72;        /* Salvia atenuada */
    
    /* Acentos Académicos & Hábitat Primate (Vibrancia Justa & Sobria) */
    --color-accent-primary: #1b6341;    /* Verde Bosque Académico / Leiden Green */
    --color-accent-primary-hover: #134d32;
    --color-accent-amber: #d36322;      /* Terracota / Ámbar Cálido Leiden */
    --color-accent-amber-hover: #b55017;
    --color-accent-sage: #457860;       /* Salvia institucional */
    --color-accent-earth: #8f5a3c;      /* Arcilla / Madera */
    --color-accent-tint: #edf4f0;       /* Fondo suave verde menta/salvia */
    --color-accent-amber-tint: #fcf3eb; /* Fondo suave ámbar/arena */
    
    /* Mapeo de compatibilidad */
    --color-accent-blue: #1b6341;       /* Verde académico principal */
    --color-accent-blue-hover: #134d32;
    --color-accent-gold: #d36322;       /* Terracota/Ámbar */
    --color-accent-gold-hover: #b55017;
    --color-accent-cyan: #3d7e68;       /* Jade/Salvia */
    --color-accent-purple: #7a5840;     /* Caoba/Corteza */
    --color-accent-red: #c0422c;        /* Alerta terracota */
    --color-accent-green: #1b6341;
    --color-border-glow: #c9c3b6;
    
    /* Inputs */
    --input-bg: #ffffff;
    --input-text: #121915;
    --input-border: #d4cfc4;
    
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: 'Fraunces', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    
    /* Estructura & Sombras Sobrias (Flat Academic Minimalist) */
    --glass-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --glass-backdrop: none;
    --transition-smooth: all 0.2s ease;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    --fluid-max-width: 1680px;
}

/* Modo Oscuro (Alternativo Sobrio) */
[data-theme="dark"] {
    --color-bg: #0e1411;
    --color-bg-secondary: #141c18;
    --color-bg-card: #19241f;
    --color-bg-card-hover: #202d27;
    --color-border: #283830;
    --color-border-hover: #3d5246;
    
    --color-text-primary: #f2f5f2;
    --color-text-secondary: #a3b5ab;
    --color-text-muted: #6e8276;
    
    --color-accent-primary: #2ea36d;
    --color-accent-primary-hover: #25885a;
    --color-accent-amber: #d97724;
    --color-accent-amber-hover: #bf6417;
    --color-accent-sage: #568e76;
    --color-accent-earth: #b35e39;
    --color-accent-tint: #16261f;
    --color-accent-amber-tint: #261e16;
    
    --color-accent-blue: #2ea36d;
    --color-accent-blue-hover: #25885a;
    --color-accent-gold: #d97724;
    --color-accent-gold-hover: #bf6417;
    --color-accent-cyan: #4ea88c;
    --color-accent-purple: #99633e;
    
    --input-bg: #141c18;
    --input-text: #f2f5f2;
    --input-border: #2c3d34;
    
    --glass-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    background-color: var(--color-bg);
    min-height: 100vh;
}

/* Clean background - No sci-fi blueprint grids */
.blueprint-overlay, .glow-bg, .glow-orb {
    display: none;
}

/* Typography */
h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    line-height: 1.25;
}

p {
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--color-accent-amber);
}

/* ==========================================================================
   FLUID FULL-WIDTH LAYOUT & UTILITIES
   ========================================================================== */
.fluid-container {
    width: 100%;
    max-width: var(--fluid-max-width);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 3.5vw, 4rem);
}

.section {
    padding: clamp(3.5rem, 5.5vw, 6rem) 0;
    position: relative;
}

.section-header-center {
    text-align: center;
    max-width: 860px;
    margin: 0 auto clamp(2rem, 3.5vw, 3.5rem) auto;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.75rem;
    background: var(--color-accent-tint);
    padding: 0.3rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(27, 99, 65, 0.2);
}

.section-badge {
    font-family: var(--font-heading);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent-amber);
    text-transform: uppercase;
    background: var(--color-accent-amber-tint);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(211, 99, 34, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.85rem, 3.2vw, 2.75rem);
    font-weight: 800;
    margin-bottom: 0.85rem;
    letter-spacing: -0.025em;
    color: var(--color-text-primary);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: clamp(0.98rem, 1.2vw, 1.12rem);
    line-height: 1.65;
}

/* Academic Buttons (Flat, Solid, High Legibility) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    padding: 0.75rem 1.65rem;
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-smooth);
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background: var(--color-accent-primary);
    color: #ffffff !important;
    border-color: var(--color-accent-primary);
}

.btn-primary:hover {
    background: var(--color-accent-primary-hover);
    border-color: var(--color-accent-primary-hover);
    color: #ffffff !important;
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
}

.btn-accent {
    background: var(--color-accent-amber);
    color: #ffffff !important;
    font-weight: 700;
    border-color: var(--color-accent-amber);
}

.btn-accent:hover {
    background: var(--color-accent-amber-hover);
    border-color: var(--color-accent-amber-hover);
    color: #ffffff !important;
}

.btn-small {
    padding: 0.45rem 0.95rem;
    font-size: 0.82rem;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   NAVIGATION HEADER (ACADEMIC TOPBAR)
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-smooth);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .site-header {
    background: rgba(14, 20, 17, 0.97);
    border-bottom-color: var(--color-border);
}

.header-container {
    max-width: var(--fluid-max-width);
    margin: 0 auto;
    padding: 0.85rem clamp(1.25rem, 3.5vw, 4rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
}

.logo-badge-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-primary);
    font-size: 1.2rem;
}

.logo-brand {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--color-text-primary);
    line-height: 1.1;
}

.logo-accent {
    color: var(--color-accent-amber);
}

.logo-sub {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.main-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    list-style: none;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: var(--transition-smooth);
    padding: 0.4rem 0.65rem;
    border-radius: var(--radius-sm);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent-primary);
    background: var(--color-accent-tint);
}

.nav-highlight {
    color: var(--color-accent-primary) !important;
    font-weight: 700;
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.2);
}

.btn-nav-cta {
    background: var(--color-accent-primary);
    color: #ffffff !important;
    padding: 0.45rem 1.1rem !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.btn-nav-cta:hover {
    background: var(--color-accent-primary-hover);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-btn {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: var(--transition-smooth);
}

.control-btn:hover {
    background: var(--color-bg-card-hover);
    color: var(--color-text-primary);
}

.lang-badge {
    opacity: 0.6;
}

.lang-badge.active {
    opacity: 1;
    font-weight: 700;
    color: var(--color-accent-amber);
}

.icon-sun { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

.mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: 1.15rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

/* ==========================================================================
   HERO SECTION & 16:9 EDITORIAL CAROUSEL
   ========================================================================== */
.hero-section {
    padding: clamp(6rem, 8.5vw, 8rem) 0 clamp(3rem, 4.5vw, 4.5rem) 0;
    background: var(--color-bg);
}

.hero-grid-16-9 {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: clamp(2rem, 3.5vw, 4rem);
    align-items: center;
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: clamp(0.72rem, 0.85vw, 0.8rem);
    font-weight: 600;
    color: var(--color-accent-amber);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1rem;
    background: var(--color-accent-amber-tint);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(211, 99, 34, 0.2);
}

.hero-title {
    font-size: clamp(2.1rem, 3.6vw, 3.4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.18;
    margin-bottom: 1.15rem;
}

.hero-title em {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-accent-primary);
    font-weight: 600;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.25vw, 1.15rem);
    line-height: 1.68;
    margin-bottom: 1.85rem;
    color: var(--color-text-secondary);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-bottom: 1.85rem;
}

.hero-badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.hero-mini-badge {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--color-text-muted);
    background: var(--color-bg-card);
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

/* Widescreen 16:9 Carousel (Clean Academic Card) */
.carousel-16-9-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 350px;
    max-height: 500px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: #000;
    box-shadow: var(--glass-shadow);
}

.carousel-slide-16-9 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease;
}

.carousel-slide-16-9.active {
    opacity: 1;
    visibility: visible;
}

.slide-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.slide-overlay-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(18, 25, 21, 0.05) 0%, rgba(18, 25, 21, 0.7) 65%, rgba(18, 25, 21, 0.94) 100%);
    z-index: 2;
}

.slide-caption-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: clamp(1.25rem, 2.8vw, 2.25rem);
    z-index: 3;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    max-width: 85%;
}

.slide-badge-pill {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.pill-gold { background: var(--color-accent-amber); color: #ffffff; }
.pill-blue { background: var(--color-accent-primary); color: #ffffff; }
.pill-cyan { background: var(--color-accent-sage); color: #ffffff; }
.pill-green { background: var(--color-accent-primary); color: #ffffff; }

.slide-caption-box h3 {
    font-size: clamp(1.15rem, 1.9vw, 1.55rem);
    color: #ffffff !important;
    font-weight: 800;
    line-height: 1.25;
}

.slide-caption-box p {
    font-size: clamp(0.82rem, 1vw, 0.94rem);
    color: #e5ece7 !important;
    line-height: 1.45;
    margin-bottom: 0.15rem;
}

.slide-cta-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: #ffd0a8 !important;
}

.slide-cta-link:hover {
    color: #ffffff !important;
}

/* Carousel UI Controls */
.carousel-ui-overlay {
    position: absolute;
    bottom: 1.15rem;
    right: 1.25rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.carousel-arrow-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--color-border);
    color: #121915;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.carousel-arrow-btn:hover {
    background: var(--color-accent-primary);
    color: #ffffff;
    border-color: var(--color-accent-primary);
}

.carousel-indicators-bar {
    display: flex;
    gap: 0.3rem;
}

.indicator-pill {
    width: 20px;
    height: 4px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: var(--transition-smooth);
}

.indicator-pill.active {
    width: 32px;
    background: var(--color-accent-primary);
}

/* ==========================================================================
   TWIN PILLARS: MACRO & MICRO (INSTITUTIONAL CARDS)
   ========================================================================== */
.pillars-section {
    background: var(--color-bg-secondary);
}

.pillars-grid-16-9 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.5rem, 2.8vw, 2.5rem);
}

.pillar-card-wide {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.85rem, 2.8vw, 2.5rem);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    box-shadow: var(--glass-shadow);
}

.pillar-card-wide:hover {
    border-color: var(--color-border-hover);
}

.pillar-macro { border-top: 4px solid var(--color-accent-amber); }
.pillar-micro { border-top: 4px solid var(--color-accent-primary); }

.pillar-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1.15rem;
    margin-bottom: 1.35rem;
}

.pillar-icon-box {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.2);
    color: var(--color-accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.gold-icon-box {
    background: var(--color-accent-amber-tint);
    border-color: rgba(211, 99, 34, 0.2);
    color: var(--color-accent-amber);
}

.pillar-level-badge {
    font-family: var(--font-heading);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-bottom: 0.3rem;
}

.macro-badge { background: var(--color-accent-amber-tint); color: var(--color-accent-amber); }
.micro-badge { background: var(--color-accent-tint); color: var(--color-accent-primary); }

.pillar-card-header h3 {
    font-size: clamp(1.2rem, 1.65vw, 1.5rem);
    margin-bottom: 0.25rem;
}

.pillar-tagline {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.pillar-bullet-list {
    list-style: none;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.pillar-bullet-list li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.85rem;
    padding-left: 1.35rem;
    position: relative;
    line-height: 1.55;
}

.pillar-bullet-list li::before {
    content: "■";
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-size: 0.65rem;
    top: 0.35rem;
}

.pillar-macro .pillar-bullet-list li::before {
    color: var(--color-accent-amber);
}

.pillar-card-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.scope-tag {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* ==========================================================================
   EOSHC THEORETICAL MODEL (ACADEMIC TABS)
   ========================================================================== */
.model-section {
    background: var(--color-bg);
}

.model-tabs-fluid-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 2.8vw, 2.5rem);
    box-shadow: var(--glass-shadow);
}

.model-tab-buttons-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.85rem;
}

.model-tab-btn {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.88rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.model-tab-btn:hover {
    background: var(--color-bg-card-hover);
    color: var(--color-text-primary);
}

.model-tab-btn.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: #ffffff;
}

.model-pane {
    display: none;
    animation: fadeIn 0.25s ease;
}

.model-pane.active {
    display: block;
}

.pane-grid-16-9 {
    display: grid;
    grid-template-columns: 1.45fr 0.55fr;
    gap: 2rem;
    align-items: center;
    padding: 0.5rem 0;
}

.pane-category-tag {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    margin-bottom: 0.4rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.pane-text h3 {
    font-size: clamp(1.25rem, 1.85vw, 1.75rem);
    margin-bottom: 0.85rem;
}

.pane-text p {
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.68;
    margin-bottom: 1.15rem;
}

.metric-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.pill-blue { background: var(--color-accent-tint); color: var(--color-accent-primary); border-color: rgba(27, 99, 65, 0.2); }
.pill-purple { background: var(--color-accent-amber-tint); color: var(--color-accent-amber); border-color: rgba(211, 99, 34, 0.2); }
.pill-red { background: #fdf2f0; color: var(--color-accent-red); border-color: rgba(192, 66, 44, 0.2); }
.pill-green { background: var(--color-accent-tint); color: var(--color-accent-primary); border-color: rgba(27, 99, 65, 0.2); }

.pane-visual-card {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-stat-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 2px solid var(--color-accent-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.85rem;
    background: var(--color-bg-secondary);
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent-primary);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    margin: 0.2rem 0;
}

.visual-stat-circle small {
    font-size: 0.68rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   SIMULADOR SAM5526-PUB (ACADEMIC LAB STATISTICAL TOOL)
   ========================================================================== */
.simulator-section {
    background: var(--color-bg-secondary);
}

.simulator-widescreen-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: clamp(1.5rem, 2.5vw, 2.5rem);
    align-items: start;
}

.sim-card-matrix {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.35rem, 2.2vw, 2rem);
    box-shadow: var(--glass-shadow);
}

.matrix-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

.matrix-card-header h3 {
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}

.matrix-instructions {
    font-size: 0.82rem;
    color: var(--color-accent-primary);
    font-weight: 500;
}

.matrix-case-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-accent-primary);
    background: var(--color-accent-tint);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(27, 99, 65, 0.25);
    white-space: nowrap;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin-bottom: 1.25rem;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 480px;
}

.matrix-table th {
    text-align: center;
    padding: 0.65rem 0.35rem;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.matrix-table th:first-child {
    text-align: left;
    padding-left: 0.65rem;
}

.matrix-table td {
    padding: 0.55rem 0.35rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.matrix-table td:first-child {
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-primary);
    padding-left: 0.65rem;
}

.cell-binary {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    user-select: none;
}

.cell-binary:hover {
    border-color: var(--color-accent-primary);
}

.cell-binary.val-1 {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: #ffffff;
}

.cell-binary.val-0 {
    background: var(--color-bg-secondary);
    border-color: var(--color-border);
    color: var(--color-text-muted);
}

.matrix-actions {
    display: flex;
    justify-content: flex-end;
}

/* Results Dashboard Card (Clean Academic Panel) */
.sim-card-results {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.35rem, 2.2vw, 2rem);
    color: var(--color-text-primary);
    box-shadow: var(--glass-shadow);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.results-header h3 {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--color-text-primary);
}

.pulse-live-indicator {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent-primary);
}

.result-block {
    margin-bottom: 1.35rem;
}

.result-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 0.65rem;
}

.vector-display {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.vector-cell {
    flex: 1;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    position: relative;
    border: 1px solid var(--color-border);
    transition: var(--transition-smooth);
}

.vector-cell.val-1 {
    background: var(--color-accent-amber);
    color: #ffffff;
    border-color: var(--color-accent-amber);
}

.vector-cell.val-0 {
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
}

.cause-label-tooltip {
    position: absolute;
    bottom: -20px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.vector-hint {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    margin-top: 1.65rem;
    display: block;
}

/* Metrics 4-Column Grid */
.metrics-grid-4col {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.65rem;
    margin-top: 1.35rem;
    margin-bottom: 1.35rem;
}

.metric-box {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.metric-icon {
    font-size: 1.2rem;
    color: var(--color-accent-primary);
}

.metric-data {
    display: flex;
    flex-direction: column;
}

.metric-title {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.metric-number {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1.1;
    margin: 0.1rem 0;
}

.metric-desc {
    font-size: 0.62rem;
    color: var(--color-text-muted);
}

.analysis-explanation {
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.2);
    border-radius: var(--radius-sm);
    padding: 1rem;
}

.analysis-explanation h4 {
    font-size: 0.88rem;
    margin-bottom: 0.45rem;
    color: var(--color-accent-primary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.analysis-explanation p {
    font-size: 0.88rem;
    line-height: 1.58;
    color: var(--color-text-secondary);
}

/* ==========================================================================
   SERVICES SECTION (3-COLUMN ACADEMIC CATALOG)
   ========================================================================== */
.services-section {
    background: var(--color-bg);
}

.services-tabs {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.tab-btn {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 0.75rem 1.65rem;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    transition: var(--transition-smooth);
}

.tab-btn:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.tab-btn.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: #ffffff !important;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.25s ease;
}

.tab-panel.active {
    display: block;
}

.services-grid-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.25rem, 2vw, 2rem);
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 2.2vw, 2.25rem) clamp(1.25rem, 1.8vw, 1.85rem);
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    box-shadow: var(--glass-shadow);
}

.service-card:hover {
    border-color: var(--color-border-hover);
}

.premium-card {
    border-top: 3px solid var(--color-accent-amber);
}

.service-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-tint);
    color: var(--color-accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1.15rem;
}

.premium-card .service-icon {
    background: var(--color-accent-amber-tint);
    color: var(--color-accent-amber);
}

.service-card h3 {
    font-size: 1.22rem;
    margin-bottom: 0.65rem;
}

.service-card p {
    font-size: 0.9rem;
    line-height: 1.55;
    margin-bottom: 1.15rem;
}

.service-bullets {
    list-style: none;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-bullets li {
    font-size: 0.86rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.55rem;
    padding-left: 1.15rem;
    position: relative;
}

.service-bullets li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-weight: bold;
}

.premium-card .service-bullets li::before {
    color: var(--color-accent-amber);
}

.service-footer {
    padding-top: 0.85rem;
    border-top: 1px solid var(--color-border);
}

.service-price {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

/* ==========================================================================
   PUBLICATIONS & 16:9 BOOKS (ACADEMIC EDITORIAL)
   ========================================================================== */
.publications-section {
    background: var(--color-bg-secondary);
}

.books-grid-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.25rem, 2vw, 2rem);
}

.book-card-16-9 {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
    transition: var(--transition-smooth);
    box-shadow: var(--glass-shadow);
}

.book-card-16-9:hover {
    border-color: var(--color-border-hover);
}

.book-image-header {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--color-border);
}

.book-cover-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-floating-badge {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    background: var(--color-accent-amber);
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.book-genre {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-accent-amber);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    font-weight: 600;
}

.book-details h3 {
    font-size: 1.25rem;
    margin-bottom: 0.55rem;
}

.book-details p {
    font-size: 0.9rem;
    line-height: 1.55;
    margin-bottom: 1.15rem;
}

.book-meta-list {
    display: flex;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--color-text-muted);
    margin-bottom: 1.15rem;
}

.badge-status {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    background: var(--color-accent-tint);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(27, 99, 65, 0.2);
}

/* ==========================================================================
   ACADEMIC LEADERSHIP & AUTHOR PROFILE
   ========================================================================== */
.author-section {
    background: var(--color-bg);
}

.author-card-widescreen {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.75rem, 3vw, 3.25rem);
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    gap: clamp(1.75rem, 3vw, 3.25rem);
    align-items: center;
    box-shadow: var(--glass-shadow);
}

.author-photo-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.15rem;
}

.photo-wrapper-16-9 {
    position: relative;
    width: 100%;
    max-width: 280px;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.author-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-glow {
    display: none;
}

.author-badges {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    width: 100%;
    max-width: 280px;
}

.auth-pill {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-accent-primary);
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.2);
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius-sm);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
}

.author-name {
    font-size: clamp(1.75rem, 2.5vw, 2.3rem);
    margin-bottom: 0.15rem;
}

.author-title {
    font-size: 1.05rem;
    color: var(--color-accent-primary);
    font-weight: 600;
    margin-bottom: 1.35rem;
}

.author-bio-text {
    font-size: 0.98rem;
    line-height: 1.68;
    margin-bottom: 1.15rem;
}

.author-highlights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.15rem;
    margin-top: 1.75rem;
    margin-bottom: 1.75rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.highlight-item i {
    font-size: 1.25rem;
    color: var(--color-accent-amber);
    margin-top: 0.15rem;
}

.highlight-item h5 {
    font-size: 0.95rem;
    margin-bottom: 0.1rem;
}

.highlight-item p {
    font-size: 0.82rem;
    line-height: 1.35;
}

.field-work-preview {
    margin-top: 1.35rem;
    padding-top: 1.35rem;
    border-top: 1px solid var(--color-border);
}

.field-work-card {
    display: flex;
    align-items: center;
    gap: 1.15rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}

.field-thumb {
    width: 120px;
    height: 75px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.field-work-card strong {
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.15rem;
}

.field-work-card p {
    font-size: 0.8rem;
    line-height: 1.35;
}

/* ==========================================================================
   LEAD MAGNET SECTION (ACADEMIC WHITEPAPER BOX)
   ========================================================================== */
.lead-magnet-section {
    background: var(--color-bg-secondary);
}

.lead-magnet-box-widescreen {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.75rem, 3vw, 3.25rem);
    display: grid;
    grid-template-columns: 1.35fr 0.65fr;
    gap: clamp(1.75rem, 3vw, 3.25rem);
    align-items: center;
    box-shadow: var(--glass-shadow);
}

.lead-magnet-content h2 {
    font-size: clamp(1.65rem, 2.3vw, 2.1rem);
    margin-bottom: 0.85rem;
    color: var(--color-text-primary);
}

.lead-magnet-content p {
    font-size: 0.98rem;
    line-height: 1.62;
    margin-bottom: 1.35rem;
    color: var(--color-text-secondary);
}

.badge-accent {
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--color-accent-amber);
    background: var(--color-accent-amber-tint);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(211, 99, 34, 0.25);
}

.download-bullets {
    margin-bottom: 1.5rem;
}

.bullet-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.55rem;
}

.bullet-item i {
    color: var(--color-accent-primary);
}

.lead-form .form-row {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 0.55rem;
}

.lead-form input {
    flex: 1;
    padding: 0.75rem 1.15rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--input-text);
    font-family: var(--font-body);
    font-size: 0.92rem;
}

.lead-form input::placeholder {
    color: var(--color-text-muted);
}

.lead-form input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.form-privacy {
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

/* PDF Mockup */
.pdf-mockup {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-radius: var(--radius-sm);
    padding: 1.35rem;
    height: 260px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-border);
}

.pdf-header {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
}

.pdf-icon { color: var(--color-accent-amber); font-size: 1.35rem; }
.pdf-title { font-family: var(--font-heading); font-weight: 700; font-size: 0.85rem; color: var(--color-text-primary); }

.pdf-lines {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    margin-bottom: 0.5rem;
}

.line-title { width: 70%; background: var(--color-text-muted); height: 8px; margin-bottom: 0.75rem; }
.line-short { width: 45%; }

.pdf-chart-sim {
    margin-top: auto;
    display: flex;
    align-items: flex-end;
    gap: 0.45rem;
    height: 60px;
    padding: 0.45rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.chart-bar {
    flex: 1;
    background: var(--color-accent-primary);
    border-radius: 2px 2px 0 0;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-section {
    background: var(--color-bg);
}

.contact-layout-widescreen {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: clamp(1.75rem, 3vw, 3.25rem);
    align-items: start;
}

.contact-info h2 {
    font-size: clamp(1.65rem, 2.3vw, 2.1rem);
    margin-bottom: 0.85rem;
}

.contact-info p {
    font-size: 0.98rem;
    line-height: 1.62;
    margin-bottom: 1.85rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.detail-item i {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-accent-tint);
    border: 1px solid rgba(27, 99, 65, 0.2);
    color: var(--color-accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.detail-item h4 {
    font-size: 0.95rem;
    margin-bottom: 0.1rem;
}

.detail-item p {
    font-size: 0.88rem;
    margin-bottom: 0;
}

.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 2.8vw, 2.5rem);
    box-shadow: var(--glass-shadow);
}

.form-row-2col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.15rem;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.35rem;
}

.form-group input, .form-group textarea, .form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--input-text);
    font-family: var(--font-body);
    font-size: 0.92rem;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.form-select option {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
}

/* ==========================================================================
   FOOTER (ACADEMIC GROUNDING)
   ========================================================================== */
.footer {
    background: #101713;
    border-top: 1px solid #202e26;
    padding: 4rem 0 2.25rem 0;
    margin-top: 3rem;
    color: #9bb0a3;
}

.footer-top-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 1fr 1fr;
    gap: 2.75rem;
    margin-bottom: 2.75rem;
}

.footer-brand-col .logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.footer-brand-col .logo i {
    color: #4ade80;
}

.footer-brand-desc {
    font-size: 0.88rem;
    line-height: 1.58;
    color: #9bb0a3 !important;
}

.footer-links-col h5 {
    font-size: 0.95rem;
    margin-bottom: 1rem;
    color: #ffffff !important;
}

.footer-links-col ul {
    list-style: none;
}

.footer-links-col ul li {
    font-size: 0.85rem;
    color: #9bb0a3 !important;
    margin-bottom: 0.55rem;
}

.footer-links-col ul li a {
    color: #9bb0a3 !important;
}

.footer-links-col ul li a:hover {
    color: #ffffff !important;
}

.footer-bottom {
    padding-top: 1.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #9bb0a3 !important;
}

.footer-legal-links {
    display: flex;
    gap: 1.35rem;
}

.footer-legal-links a {
    color: #9bb0a3 !important;
}

/* ==========================================================================
   MODAL POPUP
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1.5rem;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2.25rem;
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.modal-icon {
    font-size: 2.5rem;
    color: var(--color-accent-primary);
    margin-bottom: 0.85rem;
}

.modal-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.65rem;
}

.modal-card p {
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1200px) {
    .metrics-grid-4col {
        grid-template-columns: repeat(2, 1fr);
    }
    .model-tab-buttons-bar {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .hero-grid-16-9 {
        grid-template-columns: 1fr;
    }
    .carousel-16-9-viewport {
        max-height: 420px;
    }
    .pillars-grid-16-9, .simulator-widescreen-grid, .author-card-widescreen, .lead-magnet-box-widescreen, .contact-layout-widescreen {
        grid-template-columns: 1fr;
    }
    .services-grid-3col, .books-grid-3col {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pane-grid-16-9 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        background: var(--color-bg-card);
        border-bottom: 1px solid var(--color-border);
        padding: 1.15rem;
        display: none;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }
    .main-nav.active {
        display: block;
    }
    .main-nav .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0.45rem;
    }
    .mobile-toggle {
        display: block;
    }
    .services-grid-3col, .books-grid-3col, .footer-top-grid {
        grid-template-columns: 1fr;
    }
    .model-tab-buttons-bar {
        grid-template-columns: 1fr;
    }
    .metrics-grid-4col, .author-highlights-grid, .form-row-2col {
        grid-template-columns: 1fr;
    }
    .lead-form .form-row {
        flex-direction: column;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 0.85rem;
        text-align: center;
    }
    .slide-caption-box {
        max-width: 100%;
        padding: 1rem;
    }
}