/* Custom Properties - Tech Grid & Blueprint Aesthetic */
:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;

    /* Theme Tech Colors */
    --color-bg-light: hsl(210, 20%, 96%);
    --color-card-bg: hsl(0, 0%, 100%);
    --color-blueprint: hsl(215, 85%, 45%);
    --color-blueprint-hover: hsl(215, 95%, 52%);
    --color-orange: hsl(22, 90%, 55%);
    --color-orange-light: hsl(22, 100%, 62%);
    --color-emerald: hsl(150, 70%, 35%);
    --color-dark: hsl(220, 25%, 12%);
    --color-muted: hsl(220, 10%, 45%);
    
    --border-grid: 1px solid rgba(30, 80, 150, 0.12);
    --shadow-solid: 0 10px 25px rgba(30, 80, 150, 0.08);
    --shadow-hover: 0 20px 45px rgba(30, 80, 150, 0.15);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-bg-light);
    color: var(--color-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    font-weight: 500;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-weight: 700;
}

/* Header Styles */
.project-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid rgba(30, 80, 150, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.back-home-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-blueprint);
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
    border: 2px solid var(--color-blueprint);
    background: transparent;
    transition: all 0.3s ease;
}

.back-home-btn:hover {
    background: var(--color-blueprint);
    color: #ffffff;
    box-shadow: 0 6px 15px rgba(30, 80, 150, 0.2);
}

.header-logo {
    height: 40px;
    width: auto;
}

.header-institution {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.inst-details {
    display: flex;
    flex-direction: column;
}

.inst-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.9rem;
    line-height: 1.2;
}

.inst-dept {
    font-size: 0.75rem;
    color: var(--color-orange);
    font-weight: 700;
}

/* Hero Section */
.project-hero {
    background: linear-gradient(135deg, hsl(215, 80%, 94%) 0%, hsl(200, 70%, 94%) 100%);
    padding: 6.5rem 2rem 5.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(30, 80, 150, 0.1);
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 30px 30px;
    background-image: linear-gradient(to right, rgba(30, 80, 150, 0.04) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(30, 80, 150, 0.04) 1px, transparent 1px);
    pointer-events: none;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    align-items: center;
}

.project-tag {
    color: var(--color-blueprint);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    background: #ffffff;
    padding: 0.35rem 1.25rem;
    border-radius: 4px;
    border: 1px solid rgba(30, 80, 150, 0.15);
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.project-title {
    font-size: clamp(2rem, 4.5vw, 2.75rem);
    line-height: 1.2;
    color: var(--color-dark);
}

.project-subtitle {
    font-size: 1.15rem;
    color: var(--color-muted);
    max-width: 700px;
    font-weight: 400;
}

/* Main Layout Grid */
.main-container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 992px) {
    .main-container {
        grid-template-columns: 320px 1fr;
    }
}

/* Sidebar Card Styling */
.technical-sidebar {
    position: relative;
}

.sidebar-card {
    background: var(--color-card-bg);
    border-radius: 12px;
    padding: 2rem;
    border: var(--border-grid);
    box-shadow: var(--shadow-solid);
    position: sticky;
    top: 100px;
    background-image: linear-gradient(rgba(30, 80, 150, 0.01) 1px, transparent 1px);
    background-size: 100% 20px;
}

.sidebar-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.divider {
    height: 3px;
    width: 40px;
    background: var(--color-blueprint);
    border-radius: 2px;
    margin-bottom: 1.5rem;
}

.tech-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tech-list li {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.9rem;
}

.tech-list li strong {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-weight: 700;
    font-size: 0.95rem;
}

.tech-list li span {
    color: var(--color-muted);
    font-weight: 500;
}

.tech-list li small {
    color: var(--color-orange);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
}

/* Core Content Styling */
.core-content {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

.content-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.content-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--color-blueprint);
    border-radius: 2px;
}

.content-section p {
    color: var(--color-muted);
    font-size: 1rem;
    margin-bottom: 1.25rem;
    line-height: 1.7;
    font-weight: 400;
}

.section-desc {
    margin-bottom: 2rem !important;
}

/* Card Style Container */
.card-style {
    background: var(--color-card-bg);
    border-radius: 12px;
    padding: 2.5rem;
    border: var(--border-grid);
    box-shadow: var(--shadow-solid);
}

/* Sequences Grid */
.sequences-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.sequence-card {
    background: var(--color-card-bg);
    border-radius: 12px;
    padding: 2rem;
    border: var(--border-grid);
    box-shadow: var(--shadow-solid);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    border-top: 4px solid var(--color-blueprint);
}

.sequence-card:nth-child(2) {
    border-top-color: var(--color-orange);
}

.seq-badge {
    align-self: flex-start;
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-inicial {
    background: rgba(30, 80, 150, 0.08);
    color: var(--color-blueprint);
}

.badge-primaria {
    background: rgba(249, 115, 22, 0.08);
    color: var(--color-orange);
}

.sequence-card h3 {
    font-size: 1.2rem;
}

.seq-desc {
    font-size: 0.85rem !important;
    margin-bottom: 0 !important;
    line-height: 1.5 !important;
}

/* Game Simulator Area */
.game-section {
    border-left: 6px solid var(--color-orange);
    background-image: linear-gradient(to right, rgba(249, 115, 22, 0.01) 1px, transparent 1px);
    background-size: 40px 100%;
}

.game-feature-callout {
    margin: 2rem 0;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-blueprint) 0%, var(--color-orange) 100%);
    color: #ffffff;
    box-shadow: 0 18px 42px rgba(30, 80, 150, 0.22);
}

.game-feature-copy {
    max-width: 560px;
}

.game-feature-kicker {
    display: inline-block;
    margin-bottom: 0.45rem;
    color: rgba(255, 255, 255, 0.78);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.game-feature-copy h3 {
    margin-bottom: 0.45rem;
    color: #ffffff;
    font-size: clamp(1.4rem, 3vw, 2rem);
    line-height: 1.15;
}

.game-feature-copy p {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
    font-size: 1rem;
    line-height: 1.55;
}

.game-feature-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0.85rem 1.35rem;
    border-radius: 10px;
    background: #ffffff;
    color: var(--color-orange);
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.game-feature-btn:hover {
    transform: translateY(-3px);
    background: var(--color-dark);
    color: #ffffff;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.24);
}

/* Integration Grid */
.integration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.int-card {
    background: rgba(30, 80, 150, 0.02);
    border-top: 3px solid var(--color-blueprint);
    padding: 1.5rem;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.int-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.int-card p {
    font-size: 0.85rem;
    margin-bottom: 0;
    line-height: 1.5;
}

/* Quote Box Styling */
.highlight-quote {
    background: rgba(30, 80, 150, 0.03);
    border-left: 4px solid var(--color-blueprint);
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    margin-top: 1.5rem;
}

.highlight-quote p {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-style: italic;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0;
}

/* Footer Styling */
.project-footer {
    background-color: var(--color-dark);
    color: rgba(255,255,255,0.6);
    padding: 3rem 2rem;
    text-align: center;
    font-size: 0.85rem;
    margin-top: 6rem;
    border-top: var(--border-grid);
}

/* Responsiveness */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .project-hero {
        padding: 4rem 1.5rem;
    }
    
    .card-style {
        padding: 1.75rem;
    }
    
    .sequences-grid {
        grid-template-columns: 1fr;
    }
}

/* Video Section Styles */
.video-section {
    background: linear-gradient(135deg, hsl(215, 60%, 95%) 0%, hsl(200, 55%, 95%) 100%);
    border-top: var(--border-grid);
    border-bottom: var(--border-grid);
    padding: 4rem 2rem 4.5rem;
    margin-top: 0;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.video-container h2 {
    font-size: 2rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.video-container h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--color-blueprint);
    border-radius: 2px;
}

.video-container p {
    color: var(--color-muted);
    font-size: 1.05rem;
    max-width: 650px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(30, 80, 150, 0.15);
    border: 2px solid rgba(30, 80, 150, 0.1);
    margin-top: 1rem;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (max-width: 720px) {
    .game-feature-callout {
        align-items: stretch;
        flex-direction: column;
        text-align: center;
    }

    .game-feature-btn {
        width: 100%;
    }
}