/* ─────────────────────────────────────────────
   Reset & Variables — Futuristic Dark Theme
───────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Core palette */
    --clr-bg:             #060c1a;
    --clr-bg-alt:         #0b1629;
    --clr-surface:        rgba(11, 22, 41, 0.82);
    --clr-surface-hi:     rgba(14, 28, 54, 0.95);

    /* Brand */
    --clr-primary:        #00d4ff;
    --clr-primary-dark:   #00a8cc;
    --clr-primary-muted:  rgba(0, 212, 255, 0.10);
    --clr-primary-glow:   rgba(0, 212, 255, 0.22);
    --clr-purple:         #8b5cf6;
    --clr-purple-muted:   rgba(139, 92, 246, 0.12);
    --clr-success:        #10b981;
    --clr-success-muted:  rgba(16, 185, 129, 0.10);

    /* Text */
    --clr-text:           #e8f4f8;
    --clr-text-secondary: #7da4be;
    --clr-text-muted:     #3d5a73;

    /* Borders */
    --clr-border:         rgba(0, 212, 255, 0.09);
    --clr-border-hover:   rgba(0, 212, 255, 0.32);
    --clr-border-card:    rgba(255, 255, 255, 0.05);

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Radii */
    --radius-sm:   6px;
    --radius-md:   12px;
    --radius-lg:   16px;
    --radius-xl:   24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-card: 0 4px 24px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.04);
    --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.18);
    --shadow-glow-lg: 0 0 48px rgba(0, 212, 255, 0.22);

    /* Easing */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.25s var(--ease);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
}

body {
    font-family: var(--font-sans);
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img  { display: block; max-width: 100%; }
a    { color: inherit; text-decoration: none; }

/* ─────────────────────────────────────────────
   Navbar
───────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(6, 12, 26, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--clr-border);
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.navbar.scrolled {
    border-bottom-color: rgba(0, 212, 255, 0.18);
    box-shadow: 0 4px 32px rgba(0,0,0,0.5), 0 0 1px rgba(0,212,255,0.3);
}

.nav-brand {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--clr-text);
}

.nav-brand span {
    background: linear-gradient(90deg, var(--clr-primary), var(--clr-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
}

.nav-links a {
    display: block;
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--clr-text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    letter-spacing: 0.01em;
}

.nav-links a:hover {
    color: var(--clr-primary);
    background: var(--clr-primary-muted);
}

.nav-cta { display: flex; align-items: center; gap: 0.75rem; }

/* ─────────────────────────────────────────────
   Buttons
───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5625rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(139,92,246,0.15));
    color: var(--clr-primary);
    border: 1px solid rgba(0,212,255,0.45);
    box-shadow: 0 0 12px rgba(0,212,255,0.12), inset 0 1px 0 rgba(255,255,255,0.06);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(139,92,246,0.08));
    opacity: 0;
    transition: opacity 0.25s var(--ease);
}

.btn-primary:hover::before { opacity: 1; }

.btn-primary:hover {
    border-color: rgba(0,212,255,0.7);
    box-shadow: 0 0 24px rgba(0,212,255,0.28), inset 0 1px 0 rgba(255,255,255,0.08);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--clr-text-secondary);
    border: 1px solid rgba(255,255,255,0.12);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.22);
    color: var(--clr-text);
    transform: translateY(-1px);
}

/* ─────────────────────────────────────────────
   Hero
───────────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 88px 2rem 4rem;
    background: var(--clr-bg);
    position: relative;
    overflow: hidden;
}

/* Dot grid */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(0,212,255,0.13) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
    pointer-events: none;
}

/* Glowing orbs */
.hero::after {
    content: '';
    position: absolute;
    top: -5%; right: 0;
    width: 55vw; height: 55vw;
    max-width: 680px; max-height: 680px;
    background: radial-gradient(circle, rgba(0,212,255,0.07) 0%, transparent 65%);
    pointer-events: none;
    animation: orb-breathe 6s ease-in-out infinite;
}

.hero-orb-2 {
    position: absolute;
    bottom: -5%; left: -5%;
    width: 45vw; height: 45vw;
    max-width: 500px; max-height: 500px;
    background: radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 65%);
    pointer-events: none;
    animation: orb-breathe 8s ease-in-out infinite reverse;
    border-radius: 50%;
}

@keyframes orb-breathe {
    0%, 100% { transform: scale(1);   opacity: 0.7; }
    50%       { transform: scale(1.1); opacity: 1;   }
}

.hero-inner {
    max-width: 1160px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* Status badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3125rem 0.875rem;
    background: var(--clr-success-muted);
    border: 1px solid rgba(16, 185, 129, 0.28);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--clr-success);
    margin-bottom: 1.25rem;
    width: fit-content;
    letter-spacing: 0.02em;
}

.status-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--clr-success);
    animation: status-pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes status-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6);  opacity: 1; }
    50%       { box-shadow: 0 0 0 4px rgba(16,185,129,0);  opacity: 0.8; }
}

.hero-greeting {
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--clr-primary);
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.1s both;
}

.hero-name {
    font-size: clamp(2.5rem, 5.5vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 0.875rem;
    background: linear-gradient(130deg, #ffffff 0%, var(--clr-primary) 55%, var(--clr-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.2s both;
}

.hero-title {
    font-size: clamp(0.875rem, 1.8vw, 1.0625rem);
    font-weight: 500;
    color: var(--clr-text-secondary);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.3s both;
}

.location-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--clr-text-muted);
    margin-bottom: 1.375rem;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.35s both;
}

.hero-description {
    font-size: 0.9375rem;
    color: var(--clr-text-secondary);
    line-height: 1.85;
    max-width: 520px;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.4s both;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.875rem;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.5s both;
}

.hero-social {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fade-up 0.7s var(--ease) 0.6s both;
}

.hero-social a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--clr-text-muted);
    transition: var(--transition);
}

.hero-social a:hover {
    color: var(--clr-primary);
    text-shadow: 0 0 12px rgba(0,212,255,0.5);
}

/* Avatar */
.hero-image-wrap {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-shrink: 0;
    opacity: 0;
    animation: fade-in-scale 0.9s var(--ease) 0.3s both;
}

.hero-avatar-frame {
    padding: 3px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-purple));
    border-radius: calc(var(--radius-xl) + 3px);
    box-shadow:
        0 0 0 1px rgba(0,212,255,0.12),
        0 24px 64px rgba(0,0,0,0.6),
        0 0 48px rgba(0,212,255,0.22),
        0 0 96px rgba(139,92,246,0.14);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0);    }
    50%       { transform: translateY(-10px); }
}

.hero-avatar {
    width: 272px;
    height: 272px;
    border-radius: var(--radius-xl);
    object-fit: cover;
    object-position: top center;
    display: block;
}

/* ─────────────────────────────────────────────
   Stats Strip
───────────────────────────────────────────── */
.stats-strip {
    background: rgba(0, 0, 0, 0.35);
    border-top: 1px solid var(--clr-border);
    border-bottom: 1px solid var(--clr-border);
    padding: 2rem;
}

.stats-inner {
    max-width: 1160px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stat-item {
    text-align: center;
    padding: 0.75rem 1rem;
    position: relative;
}

.stat-item + .stat-item::before {
    content: '';
    position: absolute;
    left: 0; top: 15%; bottom: 15%;
    width: 1px;
    background: var(--clr-border);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1;
    margin-bottom: 0.375rem;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ─────────────────────────────────────────────
   Main Content
───────────────────────────────────────────── */
.main-content {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
}

/* ─────────────────────────────────────────────
   Section Cards — Glassmorphism Panels
───────────────────────────────────────────── */
.section-card {
    background: var(--clr-surface);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    margin: 1.75rem 0;
    border: 1px solid var(--clr-border-card);
    box-shadow: var(--shadow-card);
    opacity: 0;
    transform: translateY(20px) scale(0.99);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
    position: relative;
    overflow: hidden;
}

/* Scan-line glimmer at the top of each card */
.section-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,212,255,0.25), transparent);
    opacity: 0;
    transition: opacity 0.25s var(--ease);
}

.section-card:hover::before { opacity: 1; }

.section-card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.section-card:hover {
    border-color: rgba(0,212,255,0.14);
    box-shadow: var(--shadow-card), 0 0 32px rgba(0,212,255,0.06);
}

.section-header {
    margin-bottom: 2rem;
}

.section-label {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.5rem;
    opacity: 0.85;
}

.section-title {
    font-size: 1.625rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--clr-text);
}

/* ─────────────────────────────────────────────
   About
───────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.about-block h3 {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.875rem;
    opacity: 0.85;
}

.about-block p {
    font-size: 0.9375rem;
    color: var(--clr-text-secondary);
    line-height: 1.9;
}

/* ─────────────────────────────────────────────
   Experience Timeline
───────────────────────────────────────────── */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 5px; top: 8px; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--clr-primary), rgba(0,212,255,0.05));
}

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

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: calc(-2rem - 1px);
    top: 4px;
    width: 13px; height: 13px;
    border-radius: 50%;
    background: var(--clr-primary);
    box-shadow: 0 0 10px rgba(0,212,255,0.7);
    z-index: 1;
}

/* Pulse ring on dot */
.timeline-dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 1px solid rgba(0,212,255,0.4);
    animation: dot-ring 3s ease-out infinite;
}

.timeline-item:first-child .timeline-dot {
    background: var(--clr-primary);
    box-shadow: 0 0 16px rgba(0,212,255,0.9), 0 0 32px rgba(0,212,255,0.4);
}

@keyframes dot-ring {
    0%   { opacity: 0.8; transform: scale(1);   }
    100% { opacity: 0;   transform: scale(2.4); }
}

.timeline-date {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--clr-text-muted);
    letter-spacing: 0.06em;
    margin-bottom: 0.375rem;
}

.timeline-role {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--clr-text);
    margin-bottom: 0.25rem;
}

.timeline-company {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--clr-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
}

.timeline-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-bullets li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--clr-text-secondary);
    line-height: 1.7;
}

.timeline-bullets li::before {
    content: '';
    flex-shrink: 0;
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--clr-primary);
    margin-top: 10px;
    opacity: 0.6;
    box-shadow: 0 0 4px rgba(0,212,255,0.6);
}

/* ─────────────────────────────────────────────
   Skills
───────────────────────────────────────────── */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(296px, 1fr));
    gap: 1rem;
}

.skill-category-card {
    background: rgba(0, 212, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: 1.375rem 1.5rem;
    border: 1px solid var(--clr-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-category-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,212,255,0.18), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}

.skill-category-card:hover::before { opacity: 1; }

.skill-category-card:hover {
    border-color: rgba(0,212,255,0.22);
    background: rgba(0,212,255,0.05);
    box-shadow: 0 0 20px rgba(0,212,255,0.06);
}

.skill-cat-header {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1rem;
}

.skill-cat-icon { font-size: 1rem; line-height: 1; }

.skill-cat-name {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--clr-text);
    letter-spacing: 0.01em;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.21875rem 0.625rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--clr-primary);
    background: rgba(0,212,255,0.06);
    border-radius: var(--radius-full);
    border: 1px solid rgba(0,212,255,0.18);
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    background: rgba(0,212,255,0.13);
    border-color: rgba(0,212,255,0.45);
    box-shadow: 0 0 8px rgba(0,212,255,0.2);
}

/* ─────────────────────────────────────────────
   Projects
───────────────────────────────────────────── */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
    gap: 1rem;
}

.project-card {
    background: rgba(139,92,246,0.03);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid rgba(139,92,246,0.1);
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(139,92,246,0.3), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}

.project-card:hover::before { opacity: 1; }

.project-card:hover {
    border-color: rgba(139,92,246,0.28);
    background: rgba(139,92,246,0.06);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 20px rgba(139,92,246,0.1);
}

.project-icon-wrap {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: var(--clr-purple-muted);
    border: 1px solid rgba(139,92,246,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.project-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--clr-text);
    line-height: 1.3;
}

.project-title a {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: var(--transition);
}

.project-title a:hover { color: var(--clr-purple); }

.project-description {
    font-size: 0.875rem;
    color: var(--clr-text-secondary);
    line-height: 1.75;
    flex: 1;
}

/* ─────────────────────────────────────────────
   Certificates
───────────────────────────────────────────── */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 1rem;
}

.certificate-card {
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    padding: 1.375rem;
    border: 1px solid var(--clr-border-card);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: var(--transition);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(16,185,129,0.3), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}

.certificate-card:hover::before { opacity: 1; }

.certificate-card:hover {
    border-color: rgba(16,185,129,0.2);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 16px rgba(16,185,129,0.06);
}

.cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.1875rem 0.5625rem;
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--clr-success);
    background: var(--clr-success-muted);
    border-radius: var(--radius-full);
    border: 1px solid rgba(16,185,129,0.22);
    width: fit-content;
    letter-spacing: 0.03em;
}

.cert-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--clr-text);
    line-height: 1.4;
    margin-top: 0.25rem;
}

.cert-issuer {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--clr-text-secondary);
}

.cert-date {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--clr-text-muted);
}

.cert-view-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--clr-success);
    background: var(--clr-success-muted);
    border-radius: var(--radius-full);
    border: 1px solid rgba(16,185,129,0.2);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: auto;
}

.cert-view-btn:hover {
    background: rgba(16,185,129,0.15);
    border-color: rgba(16,185,129,0.45);
    box-shadow: 0 0 12px rgba(16,185,129,0.2);
    transform: translateY(-1px);
}

/* Certificate Modal */
.certificate-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    inset: 0;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.certificate-modal.active { display: flex; }

.certificate-modal-content {
    position: relative;
    background: rgba(11, 22, 41, 0.97);
    border: 1px solid rgba(0,212,255,0.15);
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 840px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 0 64px rgba(0,0,0,0.7), 0 0 24px rgba(0,212,255,0.08);
    animation: modal-in 0.3s cubic-bezier(0.34, 1.4, 0.64, 1);
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(0.93) translateY(16px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.certificate-modal-close {
    position: absolute;
    top: 1rem; right: 1.25rem;
    width: 32px; height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: var(--transition);
    z-index: 1001;
    background: none;
    font-family: inherit;
}

.certificate-modal-close:hover {
    color: var(--clr-text);
    border-color: var(--clr-border);
    background: rgba(255,255,255,0.05);
}

.certificate-modal-body img {
    max-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 24px rgba(0,0,0,0.6);
}

.certificate-modal-body iframe {
    width: 100%;
    height: 72vh;
    border: none;
    border-radius: var(--radius-md);
}

.cert-modal-download {
    text-align: center;
    margin-top: 1rem;
}

/* ─────────────────────────────────────────────
   Education
───────────────────────────────────────────── */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(264px, 1fr));
    gap: 1rem;
}

.education-card {
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--clr-border-card);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,212,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}

.education-card:hover::before { opacity: 1; }

.education-card:hover {
    border-color: rgba(0,212,255,0.16);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    background: rgba(0,212,255,0.02);
}

.edu-period {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.edu-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--clr-text);
    line-height: 1.35;
    margin-bottom: 0.75rem;
}

.edu-description {
    font-size: 0.875rem;
    color: var(--clr-text-secondary);
    line-height: 1.75;
}

/* ─────────────────────────────────────────────
   Contact CTA
───────────────────────────────────────────── */
.contact-card {
    text-align: center;
    background: radial-gradient(ellipse at 50% 0%, rgba(0,212,255,0.07) 0%, transparent 70%),
                var(--clr-surface);
    border: 1px solid rgba(0,212,255,0.14);
    padding: 3.5rem 2.5rem;
}

.contact-card:hover {
    border-color: rgba(0,212,255,0.22);
    box-shadow: var(--shadow-card), 0 0 40px rgba(0,212,255,0.07);
}

.contact-eyebrow {
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.75rem;
    opacity: 0.85;
}

.contact-title {
    font-size: clamp(1.625rem, 3vw, 2.125rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 0.875rem;
    background: linear-gradient(130deg, var(--clr-text) 0%, var(--clr-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-subtitle {
    font-size: 0.9375rem;
    color: var(--clr-text-secondary);
    margin-bottom: 2rem;
    max-width: 460px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.contact-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ─────────────────────────────────────────────
   Footer
───────────────────────────────────────────── */
.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--clr-border);
}

.footer p {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--clr-text-muted);
    letter-spacing: 0.04em;
}

/* ─────────────────────────────────────────────
   Keyframes
───────────────────────────────────────────── */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0);    }
}

@keyframes fade-in-scale {
    from { opacity: 0; transform: scale(0.94); }
    to   { opacity: 1; transform: scale(1);    }
}

/* ─────────────────────────────────────────────
   Responsive
───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-image-wrap {
        justify-content: center;
        order: -1;
    }

    .hero-avatar { width: 216px; height: 216px; }

    .status-badge,
    .location-badge { margin-left: auto; margin-right: auto; }

    .hero-description { margin-left: auto; margin-right: auto; }

    .hero-actions,
    .hero-social { justify-content: center; }

    .stats-inner { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(3)::before { display: none; }
}

@media (max-width: 768px) {
    .navbar { padding: 0 1.25rem; }
    .nav-links { display: none; }

    .hero { padding: 96px 1.25rem 3rem; }
    .main-content { padding: 0 1.25rem 4rem; }
    .section-card { padding: 1.75rem 1.5rem; }

    .about-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .skills-grid,
    .projects-grid { grid-template-columns: 1fr; }

    .stats-strip { padding: 1.5rem 1.25rem; }
    .contact-card { padding: 2.5rem 1.5rem; }
}

@media (max-width: 480px) {
    .hero-avatar { width: 180px; height: 180px; }
    .stat-value { font-size: 1.5rem; }
    .section-card { border-radius: var(--radius-lg); }
    .certificate-modal-content { padding: 1.5rem; }
}