/* ============================================
   Design Tokens
   ============================================ */
:root {
    --color-bg-dark: #0f1418;
    --color-bg-darker: #080d10;
    --color-bg-light: #151d22;
    --color-bg-card: rgba(21, 29, 34, 0.65);
    --color-text-primary: #ffffff;
    --color-text-secondary: #dbe3e7;
    --color-text-muted: #9aa8ad;

    --color-accent-1: #F36F56;
    --color-accent-2: #36d4be;
    --color-accent-3: #e9c46a;
    --color-accent-4: #7fb7be;
    --color-accent-5: #A88BD5;
    --color-accent-6: #E56B8C;

    --gradient-primary: linear-gradient(135deg, #36d4be 0%, #7fb7be 100%);
    --gradient-secondary: linear-gradient(135deg, #F36F56 0%, #F2C14E 100%);
    --gradient-tertiary: linear-gradient(135deg, #6DAEDB 0%, #A88BD5 100%);
    --gradient-hero: linear-gradient(135deg, #2FC4B2 0%, #6DAEDB 55%, #A88BD5 100%);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    --font-size-xs: 0.8125rem;
    --font-size-sm: 0.95rem;
    --font-size-md: 1.075rem;
    --font-size-lg: 1.35rem;
    --font-size-xl: 1.85rem;
    --font-size-2xl: 2.35rem;
    --font-size-3xl: 3.1rem;
    --font-size-4xl: 4.45rem;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(54, 212, 190, 0.24);

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --z-particles: -1;
    --z-base: 1;
    --z-navbar: 100;
}

/* ============================================
   Reset & Base
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    color: var(--color-text-secondary);
    background:
        radial-gradient(circle at 16% 12%, rgba(54, 212, 190, 0.16), transparent 32%),
        radial-gradient(circle at 86% 4%, rgba(233, 196, 106, 0.12), transparent 26%),
        radial-gradient(circle at 50% 90%, rgba(168, 139, 213, 0.10), transparent 35%),
        linear-gradient(180deg, rgba(15, 20, 24, 0.96), rgba(8, 13, 16, 0.98)),
        var(--color-bg-dark);
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 70%);
}

::selection { background-color: rgba(47, 196, 178, 0.3); color: var(--color-text-primary); }

a { color: inherit; text-decoration: none; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 3px solid rgba(47, 196, 178, 0.45);
    outline-offset: 3px;
}

img { max-width: 100%; display: block; }

ul { list-style: none; }

/* ============================================
   Utilities
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 750;
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: -0.01em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    max-width: 760px;
    margin: 1.5rem auto var(--spacing-xl);
    line-height: 1.75;
}

/* ============================================
   Particles
   ============================================ */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    z-index: var(--z-particles);
    background: transparent;
    opacity: 0.22;
    pointer-events: none;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.85rem 1.6rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn i { font-size: 0.9em; }

.btn-primary {
    background: var(--gradient-primary);
    color: #07191c;
    box-shadow: 0 8px 24px rgba(54, 212, 190, 0.28);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(54, 212, 190, 0.4);
    filter: brightness(1.05);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-primary);
    border-color: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: var(--color-accent-2);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: rgba(255, 255, 255, 0.12);
}
.btn-ghost:hover {
    color: var(--color-accent-2);
    border-color: var(--color-accent-2);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: var(--z-navbar);
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(8, 13, 16, 0.82);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.02em;
    transition: filter var(--transition-fast);
}
.nav-brand .brand-accent { color: var(--color-accent-2); }
.nav-brand:hover { filter: brightness(1.2); }

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}
.nav-toggle span {
    width: 25px; height: 3px;
    background: var(--color-text-primary);
    margin: 3px 0;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu li a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: var(--font-size-xs);
    padding: 0.55rem 0.9rem;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}
.nav-menu li a i { font-size: 0.85em; opacity: 0.7; }
.nav-menu li a:hover {
    color: var(--color-accent-2);
    background: rgba(54, 212, 190, 0.08);
}
.nav-menu li a:hover i { opacity: 1; }

/* ============================================
   Hero
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 7rem;
    padding-bottom: 4rem;
    position: relative;
    background:
        radial-gradient(circle at 18% 18%, rgba(54, 212, 190, 0.16), transparent 32%),
        radial-gradient(circle at 82% 22%, rgba(233, 196, 106, 0.10), transparent 28%),
        linear-gradient(180deg, rgba(15, 20, 24, 0.94), rgba(8, 13, 16, 0.88));
    isolation: isolate;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-greeting {
    font-size: var(--font-size-md);
    color: var(--color-accent-2);
    font-weight: 500;
    margin-bottom: 0.4rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero-name {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.05;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.6rem;
}

.hero-tagline {
    font-size: var(--font-size-md);
    color: var(--color-accent-3);
    font-weight: 500;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.hero-summary {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    max-width: 540px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-bottom: 1.75rem;
}

.hero-social {
    display: flex;
    gap: 0.7rem;
}

.hero-social a, .contact-social a, .footer-social a {
    width: 42px; height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}
.hero-social a:hover, .contact-social a:hover, .footer-social a:hover {
    color: var(--color-accent-2);
    border-color: var(--color-accent-2);
    background: rgba(54, 212, 190, 0.1);
    transform: translateY(-2px);
}

.hero-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.portrait-frame {
    position: relative;
    width: 320px;
    height: 380px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 2px solid rgba(54, 212, 190, 0.35);
    box-shadow: var(--shadow-xl), 0 0 60px rgba(54, 212, 190, 0.15);
    background: var(--gradient-hero);
    isolation: isolate;
}
.portrait-frame::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: var(--gradient-hero);
    z-index: -1;
    filter: blur(18px);
    opacity: 0.55;
}
.portrait-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 18%;
    transition: transform var(--transition-slow);
}
.portrait-frame:hover img { transform: scale(1.04); }

.hero-proof {
    background: var(--color-bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.1rem;
    text-align: center;
    max-width: 320px;
}
.proof-kicker {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-accent-2);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.hero-proof strong {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    font-weight: 500;
    line-height: 1.5;
}

.hero-highlights {
    margin-top: 3rem;
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}
.highlight-item {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.6rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}
.highlight-item i { color: var(--color-accent-2); }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.7;
    animation: scrollBounce 2.2s infinite ease-in-out;
}
.scroll-indicator i { font-size: 0.95rem; color: var(--color-accent-2); }

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(7px); }
}

/* ============================================
   About
   ============================================ */
.about-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    margin-bottom: 1.1rem;
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    line-height: 1.85;
}
.about-text p strong { color: var(--color-text-primary); font-weight: 600; }

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.4rem 1.2rem;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.7;
}
.stat-card:hover {
    transform: translateY(-3px);
    border-color: rgba(54, 212, 190, 0.3);
    box-shadow: var(--shadow-lg);
}

.stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.2rem;
    letter-spacing: -0.01em;
}
.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.4;
}

.about-actions {
    display: flex;
    justify-content: center;
    gap: 0.85rem;
    flex-wrap: wrap;
}

/* ============================================
   Experience Timeline
   ============================================ */
.timeline {
    position: relative;
    max-width: 880px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent-2), rgba(54, 212, 190, 0.05));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-bottom: 2.5rem;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 6px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-bg-dark);
    border: 3px solid var(--color-accent-2);
    box-shadow: 0 0 0 4px rgba(54, 212, 190, 0.18);
}

.timeline-content {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.75rem;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}
.timeline-content:hover {
    border-color: rgba(54, 212, 190, 0.25);
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.timeline-logo {
    width: 132px;
    height: 66px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1rem;
}

.timeline-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
}
.timeline-role {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
}
.timeline-date {
    font-size: var(--font-size-xs);
    color: var(--color-accent-3);
    font-weight: 500;
    background: rgba(233, 196, 106, 0.1);
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
}

.timeline-company {
    color: var(--color-accent-2);
    font-weight: 500;
    font-size: var(--font-size-sm);
    margin-bottom: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.timeline-location {
    color: var(--color-text-muted);
    font-weight: 400;
    font-size: var(--font-size-xs);
}

.timeline-bullets {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.timeline-bullets li {
    position: relative;
    padding-left: 1.3rem;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.65;
}
.timeline-bullets li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent-2);
    font-size: 0.85rem;
    top: 1px;
}
.timeline-bullets li strong {
    color: var(--color-accent-3);
    font-weight: 600;
}

/* ============================================
   Skills
   ============================================ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.skill-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.6rem;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}
.skill-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    opacity: 0.06;
    border-radius: 0 0 100% 0;
    transition: all var(--transition-normal);
}
.skill-card:hover {
    transform: translateY(-4px);
    border-color: rgba(54, 212, 190, 0.3);
    box-shadow: var(--shadow-lg);
}
.skill-card:hover::before {
    opacity: 0.12;
    width: 90px;
    height: 90px;
}

.skill-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(54, 212, 190, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-2);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.skill-title {
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: 0.85rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}
.skill-tags li {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    padding: 0.3rem 0.7rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.skill-tags li:hover {
    background: rgba(54, 212, 190, 0.1);
    border-color: rgba(54, 212, 190, 0.3);
    color: var(--color-accent-2);
}

/* ============================================
   Projects
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1.4rem;
}

.project-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}
.project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent, rgba(54, 212, 190, 0.4) 50%, transparent);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-normal);
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}
.project-card:hover::after { opacity: 1; }

.project-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #07191c;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 6px 20px rgba(54, 212, 190, 0.3);
}

.project-title {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.7rem;
    line-height: 1.35;
}

.project-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: 1.1rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.2rem;
}
.project-tags li {
    font-size: 0.75rem;
    color: var(--color-accent-2);
    padding: 0.22rem 0.6rem;
    background: rgba(54, 212, 190, 0.08);
    border: 1px solid rgba(54, 212, 190, 0.2);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--color-accent-2);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    align-self: flex-start;
}
.project-link i { transition: transform var(--transition-fast); }
.project-link:hover { color: var(--color-text-primary); }
.project-link:hover i { transform: translateX(3px); }

/* ============================================
   Education
   ============================================ */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.4rem;
    max-width: 920px;
    margin: 0 auto;
}

.education-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    gap: 1.2rem;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}
.education-card:hover {
    transform: translateY(-3px);
    border-color: rgba(54, 212, 190, 0.25);
    box-shadow: var(--shadow-lg);
}

.education-logo {
    flex-shrink: 0;
    width: 112px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(168, 139, 213, 0.15);
    color: var(--color-accent-5);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.education-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.education-school {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.3rem;
}
.education-degree {
    color: var(--color-accent-2);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: var(--font-size-sm);
}
.education-meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}
.education-meta i { color: var(--color-accent-2); }
.education-date { color: var(--color-text-muted); }
.education-gpa {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: 0.4rem;
}
.education-gpa strong { color: var(--color-accent-3); }
.education-courses {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.6;
}
.education-courses strong { color: var(--color-text-secondary); }

/* ============================================
   Contact
   ============================================ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
}
a.contact-item:hover {
    border-color: var(--color-accent-2);
    transform: translateX(4px);
}

.contact-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: rgba(54, 212, 190, 0.12);
    color: var(--color-accent-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.15rem;
}
.contact-value {
    display: block;
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.contact-form {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 1.1rem;
}
.form-group label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.4rem;
    font-weight: 500;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: rgba(8, 13, 16, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-2);
    background: rgba(8, 13, 16, 0.85);
    box-shadow: 0 0 0 3px rgba(54, 212, 190, 0.12);
}

.contact-social {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-top: var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 2.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(8, 13, 16, 0.5);
    position: relative;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.footer-tagline {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: 0.7rem;
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 46px; height: 46px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: #07191c;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 50;
    font-size: 1rem;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-3px);
    filter: brightness(1.05);
}

/* ============================================
   Reveal animations
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 960px) {
    :root {
        --font-size-3xl: 2.4rem;
        --font-size-4xl: 3.2rem;
        --spacing-2xl: 4.5rem;
    }

    .hero-layout, .about-content, .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-visual { order: -1; }
    .portrait-frame { width: 240px; height: 280px; }

    .hero-summary { max-width: none; }
}

@media (max-width: 720px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-4xl: 2.6rem;
        --font-size-2xl: 1.8rem;
        --spacing-2xl: 3.5rem;
    }

    .nav-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        max-width: 80vw;
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
        background: rgba(8, 13, 16, 0.96);
        backdrop-filter: blur(18px);
        padding: 5rem 1.5rem 2rem;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        transition: right var(--transition-normal);
    }
    .nav-menu.active { right: 0; }
    .nav-menu li a {
        padding: 0.85rem 1rem;
        font-size: var(--font-size-sm);
        background: rgba(255, 255, 255, 0.02);
    }

    .hero-section { padding-top: 6rem; }
    .portrait-frame { width: 220px; height: 260px; }
    .hero-cta { justify-content: flex-start; }
    .hero-highlights { flex-direction: column; align-items: stretch; }
    .highlight-item { justify-content: center; }

    .timeline { padding-left: 1.5rem; }
    .timeline-marker { left: -1.5rem; }
    .timeline-content { padding: 1.2rem 1.3rem; }
    .timeline-header { flex-direction: column; gap: 0.3rem; }

    .about-stats { grid-template-columns: 1fr 1fr; }
    .education-card { flex-direction: column; gap: 0.8rem; }

    .back-to-top {
        bottom: 1.2rem;
        right: 1.2rem;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 420px) {
    .about-stats { grid-template-columns: 1fr; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .hero-cta .btn { justify-content: center; }
}