/* ============================================
   BASE STYLES & VARIABLES
   ============================================ */

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

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --accent: #8b5cf6;
    --secondary: #64748b;
    --bg: #f8fafc;
    --bg-soft: #f1f5f9;
    --surface: #ffffff;
    --surface-alt: #ffffff;
    --nav-bg: rgba(255, 255, 255, 0.7);
    --nav-bg-scrolled: rgba(255, 255, 255, 0.85);
    --overlay: rgba(59, 130, 246, 0.05);
    --overlay-strong: rgba(59, 130, 246, 0.15);
    --border-soft: rgba(59, 130, 246, 0.1);
    --border-medium: rgba(59, 130, 246, 0.2);
    --shadow: rgba(15, 23, 42, 0.08);
    --shadow-strong: rgba(59, 130, 246, 0.25);
    --text-dark: #0f172a;
    --text-light: #64748b;
    --border: #e2e8f0;
}

html[data-theme="dark"] {
    --primary: #60a5fa;
    --primary-dark: #3b82f6;
    --accent: #a78bfa;
    --bg: #030712;
    --bg-soft: #0f172a;
    --surface: rgba(15, 23, 42, 0.6);
    --surface-alt: rgba(30, 41, 59, 0.5);
    --nav-bg: rgba(3, 7, 18, 0.6);
    --nav-bg-scrolled: rgba(3, 7, 18, 0.85);
    --overlay: rgba(96, 165, 250, 0.05);
    --overlay-strong: rgba(96, 165, 250, 0.15);
    --border-soft: rgba(255, 255, 255, 0.05);
    --border-medium: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.4);
    --shadow-strong: rgba(96, 165, 250, 0.3);
    --text-dark: #f8fafc;
    --text-light: #94a3b8;
    --border: rgba(255, 255, 255, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6, .logo {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* ============================================
   NAVIGATION
   ============================================ */

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-soft);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.scrolled {
    box-shadow: 0 20px 40px var(--shadow);
    background: var(--nav-bg-scrolled);
    padding: 15px 10%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 40px;
}

.theme-toggle {
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-dark);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px var(--shadow);
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--primary);
    color: var(--primary);
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    padding: 120px 10% 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--overlay) 0%, rgba(14, 165, 233, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--overlay-strong) 0%, transparent 70%);
    border-radius: 50%;
    top: 10%;
    right: 5%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(30px); }
}

.hero-wrapper {
    display: flex;
    align-items: center;
    gap: 80px;
    position: relative;
    z-index: 10;
    max-width: 1200px;
}

.hero-text {
    flex: 1;
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to   { opacity: 1; transform: translateX(0); }
}

.hello-world {
    font-family: 'Fira Code', monospace;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}

.code-tag {
    background: var(--overlay);
    padding: 5px 12px;
    border-radius: 6px;
    border-left: 3px solid var(--primary);
}

.slash {
    color: var(--accent);
    margin-left: 5px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 15px;
    color: var(--text-dark);
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 600;
}

.hero-cta {
    display: flex;
    gap: 15px;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.hero-image-section {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 0.8s ease-out;
    /* Fixed dimensions give the orbit a stable coordinate space */
    width: 440px;
    height: 440px;
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    border: none;
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(50px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ============================================
   ORBIT SCENE  ← key fix area
   ============================================ */

.orbit-scene {
    position: relative;   /* anchor for absolutely-positioned children */
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1400px;
    transform-style: preserve-3d;
}

/* Decorative tilted ring behind everything */
.orbit-scene::before {
    content: '';
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    border: 1px solid rgba(37, 99, 235, 0.16);
    transform: rotateX(72deg) rotateZ(-12deg);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.03),
                0 0 60px rgba(37, 99, 235, 0.08);
    pointer-events: none;
}

/* Container that JS animates (inset:0 = fills .orbit-scene exactly) */
.rotating-icons-container {
    position: absolute;
    inset: 0;                  /* fills the full 440×440 orbit-scene */
    transform-style: preserve-3d;
    pointer-events: none;
}

/* Each icon: positioned from the container's top-left (0,0).
   JS uses translate(x, y) where x/y are offsets from the container centre.
   margin: -27px pulls the 54px icon back so its centre lands on that point. */
.orbiting-icon {
    position: absolute;
    left: 50%;                 /* start at horizontal centre of container */
    top: 50%;                  /* start at vertical centre of container   */
    width: 54px;
    height: 54px;
    margin-left: -27px;        /* shift left by half icon width  → centred */
    margin-top: -27px;         /* shift up   by half icon height → centred */
    background: var(--surface);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 22px var(--shadow-strong);
    border: 1px solid var(--border-medium);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    will-change: transform, opacity;
    transform-style: preserve-3d;
    backdrop-filter: blur(8px);
    pointer-events: auto;      /* re-enable so hover works despite parent none */
    cursor: default;
}

.orbiting-icon:hover {
    box-shadow: 0 12px 28px var(--shadow-strong);
    border-color: var(--primary);
}

.orbiting-icon img {
    width: 34px;
    height: 34px;
    object-fit: contain;
    pointer-events: none;
    user-select: none;
}

/* Photo core — sits above icons that pass behind, below icons in front */
.sphere-core {
    position: relative;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    overflow: hidden;
    z-index: 6;
    background:
        radial-gradient(circle at 30% 28%, rgba(255,255,255,0.38) 0%, rgba(255,255,255,0.08) 18%, transparent 42%),
        linear-gradient(145deg, rgba(37,99,235,0.16) 0%, rgba(14,165,233,0.12) 50%, rgba(15,23,42,0.08) 100%);
    box-shadow: 0 30px 80px var(--shadow-strong),
                inset 0 0 0 1px rgba(255,255,255,0.18);
    flex-shrink: 0;
}

.sphere-core::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,0.34), transparent 30%),
        linear-gradient(180deg, rgba(255,255,255,0.08), transparent 36%, rgba(15,23,42,0.22) 100%);
    pointer-events: none;
    z-index: 2;
}

.sphere-core::after {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.12);
    pointer-events: none;
    z-index: 2;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    position: relative;
    z-index: 5;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 18px;
    border: 1px solid var(--border-soft);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    box-shadow: 0 10px 25px var(--shadow-strong);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 35px var(--shadow-strong);
}

.btn-secondary {
    background: var(--surface);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.section-kicker {
    display: inline-block;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--primary);
}

.section-kicker.light {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   CONTAINERS & SECTIONS
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 10%;
}

.section-light   { background: var(--surface); }
.section-dark    { background: var(--surface-alt); }

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 50px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   ABOUT
   ============================================ */

.about-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 40px;
    align-items: center;
}

.about-image-wrap {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px var(--shadow-strong);
    border: 1px solid var(--border-soft);
    background: var(--surface);
}

.about-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-content h3 {
    font-size: 1.8rem;
    line-height: 1.2;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.9;
}

.about-stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.about-stat {
    flex: 1 1 140px;
    padding: 18px;
    border-radius: 16px;
    background: var(--surface);
    border: 1px solid var(--border-soft);
    box-shadow: 0 12px 24px var(--shadow);
}

.about-stat span {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
}

.about-stat p {
    margin: 0;
    font-size: 0.95rem;
}

/* ============================================
   SKILLS
   ============================================ */

.skills-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.skill-card {
    padding: 28px;
    border-radius: 24px;
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-soft);
    box-shadow: 0 18px 38px var(--shadow);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px var(--shadow-strong);
    border-color: var(--border-medium);
}

.skill-card h3 {
    font-size: 1.3rem;
    margin-bottom: 22px;
    color: var(--text-dark);
}

.skill-bars { display: grid; gap: 18px; }

.skill-item { display: grid; gap: 8px; }

.skill-label-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    font-size: 0.95rem;
    color: var(--text-dark);
    font-weight: 600;
}

.skill-bar {
    height: 10px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.16);
    overflow: hidden;
}

.skill-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
}

.skill-tags-wrap {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.skill-tags-wrap span {
    padding: 9px 14px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border-soft);
    color: var(--text-dark);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 10px 20px var(--shadow);
}

/* ============================================
   SERVICES
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.service-card {
    padding: 30px;
    border-radius: 24px;
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-soft);
    box-shadow: 0 14px 30px var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 45px var(--shadow-strong);
    border-color: var(--border-medium);
}

.service-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ============================================
   PROJECTS
   ============================================ */

.projects-section {
    background: linear-gradient(135deg, var(--surface) 0%, var(--overlay) 100%);
    padding: 80px 0;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid rgba(37, 99, 235, 0.2);
    background: var(--surface);
    color: var(--text-dark);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 10px 25px var(--shadow-strong);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
    border: 1px solid var(--border-soft);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px var(--shadow-strong);
    border-color: var(--primary);
}

.project-header {
    padding: 25px;
    background: linear-gradient(135deg, var(--overlay) 0%, rgba(14,165,233,0.04) 100%);
    border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.project-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.project-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 12px;
}

.tech-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.tech-tag {
    background: var(--overlay);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--primary);
    border: 1px solid var(--border-medium);
    font-weight: 600;
}

.project-body { padding: 25px; }

.project-description {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
    font-size: 0.95rem;
}

.project-features { margin-bottom: 20px; }

.features-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.feature-list { list-style: none; padding: 0; }

.feature-list li {
    padding: 4px 0 4px 18px;
    position: relative;
    color: var(--text-light);
    font-size: 0.85rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.project-footer {
    display: flex;
    gap: 10px;
    padding: 15px 25px;
    border-top: 1px solid var(--border-soft);
}

.project-link {
    flex: 1;
    padding: 10px 15px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, var(--overlay) 0%, rgba(14,165,233,0.08) 100%);
    color: var(--primary);
    border: 1px solid var(--border-medium);
}

.project-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ============================================
   RESUME
   ============================================ */

.resume-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.resume-card {
    padding: 30px;
    border-radius: 24px;
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-soft);
    box-shadow: 0 16px 34px var(--shadow);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.resume-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px var(--shadow-strong);
    border-color: var(--border-medium);
}

.resume-card h3 {
    font-size: 1.3rem;
    margin-bottom: 18px;
    color: var(--text-dark);
}

.resume-item {
    padding: 18px 0;
    border-top: 1px solid var(--border-soft);
}

.resume-item:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.resume-date {
    display: inline-block;
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
}

.resume-item h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.resume-item p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ============================================
   CONTACT
   ============================================ */

.contact-section {
    background: linear-gradient(135deg, var(--bg-soft) 0%, #1e293b 100%);
    padding: 80px 0;
    text-align: center;
}

.contact-section .section-title {
    color: white;
    background: none;
    -webkit-text-fill-color: white;
}

.contact-inner {
    display: grid;
    gap: 24px;
    justify-items: center;
}

.contact-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.contact-section .btn-primary {
    background: linear-gradient(135deg, #60a5fa 0%, #0ea5e9 100%);
}

.contact-section .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.contact-section .btn-secondary:hover {
    background: white;
    color: #0f172a;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    text-align: center;
    padding: 30px;
    background: var(--surface-alt);
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   TECH GRID (legacy — kept for compatibility)
   ============================================ */

.about-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.9;
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.tech-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    background: var(--surface);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    border: 1px solid var(--border-soft);
    transition: all 0.3s ease;
    cursor: pointer;
}

.tech-icon:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px var(--shadow-strong);
    border-color: var(--primary);
}

.tech-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

/* ============================================
   TIMELINE (legacy — kept for compatibility)
   ============================================ */

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
}

.timeline-item {
    margin-bottom: 50px;
    display: flex;
    gap: 40px;
    animation: fadeInUp 0.8s ease-out both;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }

.timeline-item:nth-child(odd) { flex-direction: row-reverse; }

.timeline-marker {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 10px;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: var(--surface);
    border: 3px solid var(--primary);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.timeline-dot.active {
    background: var(--primary);
    width: 28px;
    height: 28px;
    box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.1);
}

.timeline-content {
    flex: 1;
    background: var(--surface);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow);
    border: 1px solid var(--border-soft);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    box-shadow: 0 10px 30px var(--shadow-strong);
    border-color: var(--primary);
    transform: translateY(-5px);
}

.timeline-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.timeline-label {
    font-size: 0.95rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    nav {
        padding: 16px 20px;
        gap: 12px;
        flex-wrap: wrap;
    }

    .nav-links {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-wrapper {
        flex-direction: column;
        gap: 40px;
        padding: 0 20px;
    }

    .hero-image-section {
        width: 320px;
        height: 320px;
    }

    /* Scale orbit ring down on tablet */
    .orbit-scene::before {
        width: 280px;
        height: 280px;
    }

    .sphere-core {
        width: 200px;
        height: 200px;
    }

    .hero-stats  { gap: 20px; }
    .hero-cta    { flex-direction: column; }
    .section-title { font-size: 2rem; }

    .about-layout,
    .skills-layout,
    .services-grid,
    .resume-grid {
        grid-template-columns: 1fr;
    }

    .about-layout { gap: 24px; }

    .about-image-wrap {
        max-width: 360px;
        margin: 0 auto;
    }

    .services-grid { gap: 18px; }

    .timeline::before  { left: 20px; }
    .timeline-item     { gap: 20px; }
    .timeline-item,
    .timeline-item:nth-child(odd) { flex-direction: column; }
    .timeline-marker   { position: absolute; left: 0; }
    .timeline-content  { margin-left: 40px; }

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    }

    .container { padding: 60px 20px; }

    .contact-inner { justify-items: stretch; }
}

@media (max-width: 480px) {
    nav { padding: 15px 20px; }
    .nav-links { display: none; }

    .hero { padding: 100px 20px 50px; }
    .hello-world { font-size: 1rem; }

    .hero-image-section {
        width: 260px;
        height: 260px;
    }

    .orbit-scene::before {
        width: 220px;
        height: 220px;
    }

    .sphere-core {
        width: 160px;
        height: 160px;
    }

    .projects-grid { grid-template-columns: 1fr; }

    .about-content h3 { font-size: 1.5rem; }

    .skill-card,
    .service-card,
    .resume-card { padding: 22px; }

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 20px;
    }
}

/* ============================================
   SCROLLBAR
   ============================================ */

::-webkit-scrollbar       { width: 10px; }
::-webkit-scrollbar-track { background: var(--surface-alt); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }