/* =========================================================================
   CORE VARIABLES & RESET
   ========================================================================= */
:root {
    /* Color Palette - Premium Medieval Aesthetic */
    --bg-color: #0d0f12;
    /* Deep dark charcoal almost navy */
    --bg-lighter: #161a22;
    /* Slightly lighter for cards */
    --text-color: #e2dfd2;
    /* Parchment-like text */
    --text-muted: #a39c90;
    /* Muted parchment */

    /* Accents */
    --accent-gold: #cfa861;
    /* Aged gold */
    --accent-crimson: #7a1f1f;
    /* Deep crimson red */
    --accent-glow: rgba(207, 168, 97, 0.2);

    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Outfit', sans-serif;

    /* Shapes */
    --radius-lg: 16px;
    --radius-sm: 8px;

    /* Spacing */
    --section-padding: 120px 0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Base Typography */
h1,
h2,
h3,
h4,
.font-cinzel {
    font-family: var(--font-heading);
    font-weight: 600;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--text-muted);
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: var(--section-padding);
    position: relative;
}

.text-center {
    text-align: center;
}

/* =========================================================================
   NAVIGATION (Glassmorphism)
   ========================================================================= */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(13, 15, 18, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.4s ease;
}

.nav-brand {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: 2px;
}

.nav-brand span {
    color: var(--accent-gold);
    font-weight: 400;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links li a {
    font-weight: 400;
    font-size: 1rem;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 5px;
    text-transform: uppercase;
    font-family: var(--font-heading);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 1px;
    background: var(--accent-gold);
    transition: width 0.3s ease;
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

/* =========================================================================
   HERO SECTION
   ========================================================================= */
.hero {
    height: 100vh;
    min-height: 800px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    background-size: cover;
    background-position: center;
    z-index: -2;
    filter: brightness(0.6) contrast(1.1);
    transform: scale(1.05);
}

/* Gradient overlay for depth */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(13, 15, 18, 0.3) 0%, var(--bg-color) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    z-index: 2;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 2px 4px 20px rgba(0, 0, 0, 0.8);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s 0.2s forwards;
    letter-spacing: 1px;
}

.hero-content h1 .highlight {
    color: var(--accent-gold);
    font-size: 5rem;
    display: block;
    margin-top: 10px;
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 40px;
    color: var(--text-color);
    text-shadow: 1px 2px 10px rgba(0, 0, 0, 0.8);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1s 0.5s forwards;
}

.btn-primary {
    display: inline-block;
    padding: 16px 40px;
    background: transparent;
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeUp 1s 0.8s forwards;
}

.btn-primary:hover {
    background: var(--accent-gold);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
    animation: fadeUp 1s 1.2s forwards;
}

.scroll-indicator span {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% {
        top: 6px;
        opacity: 1;
    }

    100% {
        top: 20px;
        opacity: 0;
    }
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================================================================
   STAGGERED GRID LAYOUT (Editorial style)
   ========================================================================= */
.section-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.1;
    color: var(--text-color);
}

.section-title span {
    color: var(--accent-gold);
    display: block;
    font-style: italic;
}

.accent-line {
    width: 60px;
    height: 2px;
    background: var(--accent-gold);
    margin-bottom: 30px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.staggered-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.staggered-grid.center-focused {
    grid-template-columns: 1fr;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    gap: 50px;
}

/* Overlapping Complex Layout */
.staggered-grid.overlap-layout {
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    align-items: center;
    margin-bottom: 60px;
}

.overlap-layout .staggered-text {
    grid-column: 1 / 7;
    grid-row: 1;
    z-index: 2;
    padding: 50px;
    background: rgba(22, 26, 34, 0.9);
    /* Dark background to overlap image */
    border: 1px solid rgba(207, 168, 97, 0.2);
    box-shadow: 20px 20px 40px rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-sm);
}

.overlap-layout .staggered-img-wrapper {
    grid-column: 6 / 13;
    grid-row: 1;
    z-index: 1;
    padding: 0;
}

/* Reverse Overlap Layout */
.staggered-grid.overlap-reverse {
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    align-items: center;
    margin-bottom: 60px;
}

.overlap-reverse .staggered-img-wrapper {
    grid-column: 1 / 8;
    grid-row: 1;
    z-index: 1;
    padding: 0;
}

.overlap-reverse .staggered-text {
    grid-column: 7 / 13;
    grid-row: 1;
    z-index: 2;
    padding: 50px;
    background: rgba(22, 26, 34, 0.9);
    border: 1px solid rgba(207, 168, 97, 0.2);
    box-shadow: -20px 20px 40px rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-sm);
}

.center-text {
    padding-right: 0;
}

.staggered-text {
    padding-right: 40px;
}

.staggered-img-wrapper {
    position: relative;
    padding: 20px;
}

.staggered-img-wrapper.center-aligned {
    padding: 0;
}

.staggered-img-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid var(--accent-gold);
    opacity: 0.3;
    z-index: 0;
    transition: transform 0.5s ease;
}

.staggered-img-wrapper.right-aligned::before {
    transform: translate(20px, 20px);
}

.staggered-img-wrapper.left-aligned::before {
    transform: translate(-20px, -20px);
}

.staggered-img-wrapper.center-aligned::before {
    transform: translate(15px, 15px);
}

.staggered-img-wrapper:hover::before {
    transform: translate(0, 0);
}

.img-frame {
    position: relative;
    z-index: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.wide-img .img-frame img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-position: center 20%;
}

.img-frame img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    transition: transform 0.7s ease;
}

.img-frame:hover img {
    transform: scale(1.05);
}

/* =========================================================================
   WORD PAIR LIST
   ========================================================================= */
.word-pairs {
    list-style: none;
    margin-top: 30px;
    border-left: 1px solid rgba(207, 168, 97, 0.3);
    padding-left: 20px;
}

.word-pairs li {
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.word-pairs .eng {
    color: var(--text-muted);
    font-style: italic;
    width: 140px;
}

.word-pairs .arrow {
    color: var(--accent-gold);
    font-size: 1.5rem;
}

.word-pairs .fre {
    color: var(--text-color);
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

/* =========================================================================
   CARDS (Links to other pages)
   ========================================================================= */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.glass-card {
    background: var(--bg-lighter);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    /* Removed overflow: hidden so tooltips can escape */
    text-align: center;
}

.gold-border {
    border: 1px solid rgba(207, 168, 97, 0.2);
}

.hover-lift {
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-10px);
    border-color: rgba(207, 168, 97, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.glass-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

/* =========================================================================
   GLOSSARY PAGE
   ========================================================================= */

.glossary-page,
.infographic-page {
    padding-top: 100px;
}

.page-title {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.subtitle {
    font-size: 1.4rem;
    max-width: 600px;
    margin: 0 auto 50px auto;
}

.word-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 60px;
}

.glossary-term {
    background: var(--bg-lighter);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    /* For tooltip */
}

.glossary-term:hover,
.glossary-term.active {
    background: var(--accent-gold);
    color: var(--bg-color);
    border-color: var(--accent-gold);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Tooltip for Glossary Hover Effect */
.glossary-term .tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(13, 15, 18, 0.95);
    border: 1px solid var(--accent-gold);
    color: var(--text-color);
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    white-space: nowrap;
    /* Keep it on one line mostly */
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.6);
    pointer-events: none;
    z-index: 100;
    /* Increased to ensure it is above everything else */
}

.glossary-term .tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: var(--accent-gold) transparent transparent transparent;
}

.glossary-term:hover .tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.tooltip-eng {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.85rem;
}

.tooltip-arrow {
    color: var(--accent-gold);
    margin: 0 8px;
}

.tooltip-fre {
    color: var(--text-color);
    font-weight: 600;
}

.definition-panel {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    transition: opacity 0.3s ease;
}

.hidden {
    display: none !important;
}

.def-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.def-title {
    font-size: 2.5rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.def-text {
    font-size: 1.2rem;
    line-height: 1.8;
}

/* =========================================================================
   INFOGRAPHIC PAGE
   ========================================================================= */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background: rgba(207, 168, 97, 0.3);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-dot {
    position: absolute;
    top: 20px;
    right: calc(50% - 11px);
    width: 22px;
    height: 22px;
    background: var(--bg-color);
    border: 4px solid var(--accent-gold);
    border-radius: 50%;
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: calc(50% - 11px);
}

.timeline-content {
    width: calc(100% - 30px);
    padding: 30px;
    text-align: left;
    margin-right: 30px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 30px;
    margin-right: 0;
}

.timeline-date {
    display: inline-block;
    color: var(--accent-gold);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 800;
}

.timeline-content h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
}

/* Stats */
.infographic-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 80px;
}

.stat-card {
    text-align: center;
    padding: 30px 20px;
}

.stat-number {
    font-size: 3rem;
    font-family: var(--font-heading);
    color: var(--accent-gold);
    margin-bottom: 10px;
}

.stat-label {
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* =========================================================================
   ANIMATIONS UTILITIES
   ========================================================================= */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

.block-reveal {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 1s ease, transform 1s ease;
}

.block-reveal.appear {
    opacity: 1;
    transform: translateX(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

.delay-4 {
    transition-delay: 0.8s;
}

/* =========================================================================
   RESPONSIVE DESIGN
   ========================================================================= */
@media (max-width: 900px) {

    .staggered-grid,
    .staggered-grid.overlap-layout,
    .staggered-grid.overlap-reverse,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .overlap-layout .staggered-text,
    .overlap-layout .staggered-img-wrapper,
    .overlap-reverse .staggered-text,
    .overlap-reverse .staggered-img-wrapper {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .staggered-text {
        padding: 0;
    }

    .staggered-img-wrapper.right-aligned::before,
    .staggered-img-wrapper.left-aligned::before {
        transform: translate(10px, 10px);
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        justify-content: flex-start;
        padding-left: 70px;
        padding-right: 0;
    }

    .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 19px;
    }

    .timeline-content {
        width: 100%;
        margin-right: 0 !important;
        margin-left: 0 !important;
    }

    .infographic-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3.5rem;
    }

    .hero-content h1 .highlight {
        font-size: 4rem;
    }

    .section-title {
        font-size: 2.8rem;
    }

    .nav-links {
        display: none;
        /* Handle with JS if needed */
    }

    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .hamburger span {
        width: 25px;
        height: 2px;
        background: var(--text-color);
    }
}