/* ===========================
   CSS Variables / Design Tokens
   =========================== */
:root {
    --bg-primary: #fff7b3;
    --bg-secondary: #FFF3D0;
    --bg-navbar: #1A1A1A;
    --text-primary: #1A1A1A;
    --text-secondary: #5A5A5A;
    --text-muted: #8A8A8A;
    --accent-orange: #FF5722;
    --accent-golden:#FFce00;
    --accent-orange-hover: #E64A19;
    --accent-yellow: #FF9800;
    --border-color: #E0D5C0;
    --border-light: #F0E8D8;
    --card-bg: #FFFFFF;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
/* ===========================
   Reset & Base Styles
   =========================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    font-size: 16px;
}
body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    display: block;
}
/* ===========================
   Navbar
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-navbar);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}
.logo-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2.5px solid var(--accent-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-bounce);
}
.logo-circle:hover {
    transform: scale(1.1) rotate(15deg);
}
.logo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-orange);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.nav-link {
    padding: 0.5rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #CCCCCC;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}
.nav-link:hover,
.nav-link.active {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.08);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    background: var(--accent-orange);
    border-radius: 2px;
}
.nav-cta {
    padding: 0.55rem 1.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: #FFFFFF;
    background: var(--accent-orange);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
}
.nav-cta:hover {
    background: var(--accent-orange-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 87, 34, 0.35);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transition: all var(--transition-smooth);
}
/* ===========================
   Hero Section
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 64px;
    position: relative;
    overflow: hidden;
}
/* Subtle background pattern */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 152, 0, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(255, 87, 34, 0.04) 0%, transparent 50%);
    pointer-events: none;
}
.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}
/* ===========================
   Hero Content (Left)
   =========================== */
.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.hero-badges {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.7rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}
.badge-level {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1.5px solid var(--border-color);
}
.badge-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-transform: uppercase;
}
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.hero-title .highlight {
    color: var(--accent-orange);
    position: relative;
}
.hero-title .highlight_scientist {
    color: var(--accent-golden);
    position: relative;
}
.hero-title .italic {
    font-style: italic;
}
.hero-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 480px;
}
/* Buttons */
.hero-buttons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: 2px solid transparent;
}
.btn-primary {
    background: var(--accent-orange);
    color: #FFFFFF;
    border-color: var(--accent-orange);
}
.btn-primary:hover {
    background: var(--accent-orange-hover);
    border-color: var(--accent-orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 87, 34, 0.3);
}
.btn-primary svg {
    transition: transform var(--transition-smooth);
}
.btn-primary:hover svg {
    transform: translateX(3px);
}
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}
.btn-outline:hover {
    border-color: var(--text-primary);
    background: rgba(26, 26, 26, 0.04);
    transform: translateY(-2px);
}
/* Tech Tags */
.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.tag {
    padding: 0.35rem 0.85rem;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    cursor: default;
}
.tag:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    transform: translateY(-1px);
}
/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
    max-width: 400px;
}
.info-card {
    background: var(--card-bg);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    transition: all var(--transition-smooth);
    cursor: default;
}
.info-card:hover {
    border-color: var(--border-color);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}
.info-card-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
}
.info-card-value {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}
/* ===========================
   Hero Visual (Right) — Character Card
   =========================== */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.character-card {
    position: relative;
    background: var(--bg-secondary);
    border: 3px solid var(--accent-orange);
    border-radius: var(--radius-xl);
    padding: 1.2rem;
    max-width: 380px;
    width: 100%;
    overflow: hidden;
    transition: transform var(--transition-smooth);
}
.character-card:hover {
    transform: translateY(-4px);
}
/* Rank badge */
.rank-badge {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.65rem;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    text-transform: uppercase;
    z-index: 2;
}
.character-image-wrapper {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255,248,231,0.5) 0%, rgba(255,243,208,0.8) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
}
.character-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform var(--transition-smooth);
}
.character-card:hover .character-image {
    transform: scale(1.03);
}
/* Stats */
.character-stats {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.85rem;
    justify-content: center;
}
.stat {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-navbar);
    color: #FFFFFF;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}
.stat-label {
    opacity: 0.7;
    font-weight: 500;
}
.stat-value {
    font-weight: 700;
}
/* Action button */
.character-action-btn {
    position: absolute;
    bottom: 4rem;
    right: 1.5rem;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(26, 26, 26, 0.7);
    backdrop-filter: blur(8px);
    border: 1.5px solid rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-smooth);
}
.character-action-btn:hover {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    transform: scale(1.1);
}
/* ===========================
   Scroll Indicator
   =========================== */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 1;
}
.mouse-icon {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
    display: flex;
    justify-content: center;
}
.mouse-wheel {
    width: 3px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 3px;
    margin-top: 6px;
    animation: scrollAnim 2s ease-in-out infinite;
}
@keyframes scrollAnim {
    0%, 100% {
        opacity: 1;
        transform: translateY(0);
    }
    50% {
        opacity: 0.3;
        transform: translateY(8px);
    }
}
.scroll-text {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: capitalize;
}
/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(32px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
.hero-badges {
    animation: fadeInUp 0.6s ease-out 0.1s both;
}
.hero-title {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}
.hero-description {
    animation: fadeInUp 0.6s ease-out 0.3s both;
}
.hero-buttons {
    animation: fadeInUp 0.6s ease-out 0.4s both;
}
.tech-tags {
    animation: fadeInUp 0.6s ease-out 0.5s both;
}
.info-cards {
    animation: fadeInUp 0.6s ease-out 0.6s both;
}
.hero-visual {
    animation: fadeInScale 0.8s ease-out 0.3s both;
}
/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    .hero-content {
        align-items: center;
    }
    .hero-description {
        max-width: 540px;
    }
    .hero-buttons {
        justify-content: center;
    }
    .tech-tags {
        justify-content: center;
    }
    .info-cards {
        max-width: 400px;
        margin: 0 auto;
    }
    .hero-visual {
        order: -1;
    }
    .character-card {
        max-width: 320px;
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-navbar);
        flex-direction: column;
        padding: 1rem 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .nav-links.active {
        display: flex;
    }
    .nav-link {
        padding: 0.75rem 0;
        width: 100%;
        text-align: left;
    }
    .nav-cta {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .hero-container {
        padding: 2rem 1.25rem;
    }
    .hero-title {
        font-size: 2rem;
    }
    .info-cards {
        grid-template-columns: 1fr;
        max-width: 280px;
    }
}
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.7rem;
    }
    .hero-description {
        font-size: 0.88rem;
    }
    .character-card {
        max-width: 280px;
    }
}

    /* End of CSS */