/* ============================
   CSS Custom Properties — Dark Theme (Default)
   ============================ */
:root {
    /* Dark Theme */
    --bg-primary: #0a0f1c;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-card-solid: #1a2332;
    --bg-glass: rgba(17, 24, 39, 0.6);
    --bg-input: rgba(17, 24, 39, 0.9);
    --border-glass: rgba(56, 189, 248, 0.12);
    --border-hover: rgba(56, 189, 248, 0.35);

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Accents */
    --accent-green: #10b981;
    --accent-blue: #38bdf8;
    --accent-teal: #2dd4bf;
    --accent-navy: #e2e8f0;
    --accent-purple: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #10b981, #38bdf8);
    --accent-gradient-reverse: linear-gradient(135deg, #38bdf8, #10b981);
    --accent-gradient-text: linear-gradient(135deg, #10b981 0%, #38bdf8 50%, #a78bfa 100%);
    --accent-glow: rgba(16, 185, 129, 0.3);
    --accent-glow-blue: rgba(56, 189, 248, 0.3);

    /* Typography */
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', system-ui, sans-serif;

    /* Spacing */
    --section-padding: 70px 0;
    --container-width: 1140px;

    /* Borders */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 50%;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.1);
}

/* ============================
   Light Theme
   ============================ */
[data-theme="light"] {
    --bg-primary: #f0f4ff;
    --bg-secondary: #e8eef8;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-card-solid: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.6);
    --bg-input: rgba(240, 244, 255, 0.9);
    --border-glass: rgba(100, 140, 200, 0.2);
    --border-hover: rgba(59, 130, 246, 0.4);

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --accent-green: #059669;
    --accent-blue: #2563eb;
    --accent-teal: #0d9488;
    --accent-navy: #1e293b;
    --accent-purple: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #059669, #2563eb);
    --accent-gradient-reverse: linear-gradient(135deg, #2563eb, #059669);
    --accent-gradient-text: linear-gradient(135deg, #059669 0%, #2563eb 50%, #7c3aed 100%);
    --accent-glow: rgba(5, 150, 105, 0.2);
    --accent-glow-blue: rgba(37, 99, 235, 0.2);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    width: 100%;
    -webkit-font-smoothing: antialiased;
    background: var(--bg-primary);
    transition: background 0.4s ease, color 0.4s ease;
}

::selection {
    background: var(--accent-blue);
    color: white;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================
   Animated Background Orbs
   ============================ */
.bg-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float-orb 20s ease-in-out infinite;
}

[data-theme="light"] .orb {
    opacity: 0.25;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.4) 0%, transparent 70%);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, transparent 70%);
    top: 30%;
    right: -80px;
    animation-delay: -5s;
    animation-duration: 25s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.3) 0%, transparent 70%);
    bottom: 10%;
    left: 10%;
    animation-delay: -10s;
    animation-duration: 22s;
}

.orb-4 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
    bottom: -50px;
    right: 20%;
    animation-delay: -15s;
    animation-duration: 28s;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(60px, -40px) scale(1.1); }
    50% { transform: translate(-30px, 60px) scale(0.95); }
    75% { transform: translate(40px, 30px) scale(1.05); }
}

/* ============================
   Navbar
   ============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 14px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-navy);
    letter-spacing: -0.5px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo-dot {
    width: 10px;
    height: 10px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-glow);
}

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

.nav-link {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.08);
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
    background: rgba(37, 99, 235, 0.08);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 25px;
    padding: 3px;
    backdrop-filter: blur(10px);
}

.theme-btn {
    padding: 6px 14px;
    border: none;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    background: transparent;
    color: var(--text-muted);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.theme-btn.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 10px var(--accent-glow);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================
   Hero Section
   ============================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 60px;
    z-index: 1;
}

.hero-content {
    max-width: var(--container-width);
    width: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 50px;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    color: var(--accent-green);
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4.5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--accent-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero-description {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 18px;
}

.hero-title-wrapper {
    display: flex;
    align-items: center;
    font-size: 1.05rem;
    margin-bottom: 28px;
    min-height: 36px;
}

.hero-title-prefix {
    color: var(--text-secondary);
    font-weight: 500;
}

.typed-text {
    color: var(--accent-green);
    font-weight: 700;
}

.cursor {
    color: var(--accent-blue);
    font-weight: 300;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-cta {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-socials {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.hero-socials a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--bg-glass);
    backdrop-filter: blur(6px);
    transition: var(--transition);
}

.hero-socials a:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--accent-glow-blue);
}

.hero-socials a i {
    font-size: 0.9rem;
}

/* Hero Profile Card */
.hero-profile-card {
    flex: 0 0 380px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 28px;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transition: var(--transition);
}

.hero-profile-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), 0 0 40px var(--accent-glow-blue);
}

.profile-img-wrapper {
    text-align: center;
    margin-bottom: 16px;
}

.profile-img-wrapper img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    object-position: top;
    border-radius: var(--radius-full);
    margin: 0 auto;
    border: 3px solid transparent;
    background-image: var(--accent-gradient);
    background-origin: border-box;
    background-clip: content-box, border-box;
    box-shadow: 0 0 20px var(--accent-glow);
}

.hero-profile-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 4px;
}

.profile-tagline {
    font-size: 0.82rem;
    color: var(--accent-blue);
    font-weight: 500;
    text-align: center;
    margin-bottom: 20px;
}

.profile-info-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
}

.profile-info-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-icon {
    color: var(--accent-green);
    font-size: 0.85rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.info-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    min-width: 75px;
}

.info-value {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-left: auto;
    text-align: right;
}

.profile-skill-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.profile-skill-pills span {
    padding: 4px 12px;
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass);
    transition: var(--transition);
}

.profile-skill-pills span:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.profile-tagline-box {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.profile-tagline-box i {
    color: var(--accent-green);
    font-size: 1rem;
    flex-shrink: 0;
}

/* ============================
   Buttons
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-body);
    white-space: nowrap;
}

.btn-green {
    background: var(--accent-green);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-green:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
    filter: brightness(1.1);
}

.btn-blue {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow-blue);
}

.btn-blue:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow-blue);
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-glass);
}

.btn-outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-3px);
    background: rgba(56, 189, 248, 0.05);
}

/* ============================
   Section Titles
   ============================ */
.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 50px;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: 4px;
}

/* Glass Card (reusable) */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 32px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

/* ============================
   About Section
   ============================ */
.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.about-profile-card h3,
.about-deliver-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-profile-card h3 i,
.about-deliver-title i {
    color: var(--accent-green);
}

.about-profile-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 14px;
}

.about-profile-card ul {
    list-style: none;
    padding-left: 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 2;
}

.about-profile-card ul li::before {
    content: '▹';
    color: var(--accent-green);
    font-weight: bold;
    margin-right: 10px;
}

/* Deliverables */
.deliver-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.deliver-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 22px 24px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    transition: var(--transition);
    min-height: 90px;
}

.deliver-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-hover);
}

.deliver-item i {
    font-size: 1.4rem;
    color: var(--accent-blue);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(56, 189, 248, 0.1);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.deliver-item strong {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.deliver-item span {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Stats */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--border-hover);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus,
.stat-decimal {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 6px;
}

/* ============================
   Skills Section
   ============================ */
.skills-layout {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.skills-section-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-section-title i {
    color: var(--accent-blue);
}

/* Core Skills — Bar Cards */
.core-skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.skill-bar-card {
    text-align: center;
    padding: 28px 20px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-bar-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--border-hover);
}

.skill-bar-card-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 1.4rem;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    transition: var(--transition);
}

.skill-bar-card:nth-child(1) .skill-bar-card-icon,
.skill-bar-card:nth-child(6) .skill-bar-card-icon {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-green);
}

.skill-bar-card:nth-child(3) .skill-bar-card-icon,
.skill-bar-card:nth-child(5) .skill-bar-card-icon {
    background: rgba(167, 139, 250, 0.12);
    color: var(--accent-purple);
}

.skill-bar-card:nth-child(4) .skill-bar-card-icon {
    background: rgba(45, 212, 191, 0.12);
    color: var(--accent-teal);
}

.skill-bar-card h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.skill-bar-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

/* Bottom progress bar */
.skill-bottom-track {
    height: 5px;
    background: var(--border-glass);
    border-radius: 5px;
    overflow: hidden;
    margin-top: auto;
}

.skill-bottom-fill {
    height: 100%;
    width: 0;
    border-radius: 5px;
    transition: width 1.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fill-green {
    background: linear-gradient(90deg, var(--accent-green), var(--accent-teal));
}

.fill-blue {
    background: linear-gradient(90deg, var(--accent-blue), #6366f1);
}

.fill-purple {
    background: linear-gradient(90deg, var(--accent-purple), #ec4899);
}

.fill-teal {
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-green));
}

/* Toolbox */
.toolbox-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.toolbox-pills span {
    padding: 8px 18px;
    border: 1.5px solid var(--border-glass);
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass);
    backdrop-filter: blur(4px);
    transition: var(--transition);
    cursor: default;
}

.toolbox-pills span:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.06);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow-blue);
}

/* ============================
   Projects Section — Flip Cards
   ============================ */


/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.project-card {
    perspective: 1200px;
    height: 340px;
}

.project-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    cursor: pointer;
}

.project-card:hover .project-card-inner {
    transform: rotateY(180deg);
}

.project-card-front,
.project-card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-glass);
}

.project-card-front {
    background: var(--bg-card);
}

.project-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-cover {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(to top, rgba(10, 15, 28, 0.95) 0%, rgba(10, 15, 28, 0.6) 60%, transparent 100%);
}

[data-theme="light"] .project-overlay {
    background: linear-gradient(to top, rgba(30, 41, 59, 0.95) 0%, rgba(30, 41, 59, 0.6) 60%, transparent 100%);
}

.project-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
}

.project-tags span {
    padding: 3px 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 15px;
    font-size: 0.72rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
}

.project-date {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.6);
}

.project-card-back {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 28px;
}

.project-card-back h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.project-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 18px;
}

.project-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1.5px solid var(--border-glass);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-glass);
    transition: var(--transition);
}

.project-link:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow-blue);
}

.project-card.hidden {
    display: none;
}

/* ============================
   Experience Section
   ============================ */
.exp-subsection {
    margin-bottom: 50px;
}

.exp-subsection-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.subsection-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1rem;
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    margin-bottom: 28px;
}

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

.timeline-dot {
    position: absolute;
    left: -34px;
    top: 28px;
    width: 16px;
    height: 16px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    border: 3px solid var(--bg-primary);
    z-index: 2;
    box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 24px 28px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.timeline-card:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-3px);
    border-color: var(--border-hover);
}

.timeline-card-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px 16px;
    margin-bottom: 14px;
}

.timeline-card-header h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.timeline-company-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

.timeline-card ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 14px;
}

.timeline-card ul li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.9;
    padding-left: 16px;
    position: relative;
}

.timeline-card ul li::before {
    content: '▹';
    color: var(--accent-green);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.timeline-tools {
    font-size: 0.83rem;
    color: var(--accent-blue);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.timeline-tools i {
    font-size: 0.78rem;
}

/* ============================
   Education Section
   ============================ */
.education-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.edu-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 28px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.edu-card:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.edu-card-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1.3rem;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.edu-card-content h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.edu-specialization {
    font-size: 0.88rem;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: 4px;
}

.edu-institution {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.edu-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.edu-meta span {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.edu-meta i {
    color: var(--accent-blue);
    font-size: 0.82rem;
}

/* Schooling sub-entries */
.schooling-items {
    display: flex;
    flex-direction: column;
}

.schooling-entry {
    padding: 8px 0;
}

.school-level {
    font-size: 0.92rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 2px;
}

.school-location {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.schooling-divider {
    border: none;
    border-top: 1px solid var(--border-glass);
    margin: 10px 0;
}

/* ============================
   Certifications Section
   ============================ */
.cert-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 24px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.cert-card:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.cert-icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1rem;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.cert-card h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================
   Contact Section
   ============================ */
.contact-intro {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 650px;
    line-height: 1.8;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.quick-contact h3,
.message-form-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.quick-contact h3 i,
.message-form-card h3 i {
    color: var(--accent-green);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.contact-link-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-link-item:hover {
    border-color: var(--border-hover);
    color: var(--accent-blue);
    transform: translateX(4px);
    box-shadow: 0 4px 12px var(--accent-glow-blue);
}

.contact-link-item i {
    color: var(--accent-blue);
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.contact-location {
    font-size: 0.88rem;
    color: var(--text-muted);
    padding-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-location i {
    color: var(--accent-green);
}

/* Message Form */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}

.form-group {
    margin-bottom: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.92rem;
    outline: none;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-glow-blue);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1rem;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-family: var(--font-body);
    transition: var(--transition);
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
    filter: brightness(1.1);
}

/* ============================
   Footer
   ============================ */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border-glass);
    position: relative;
    z-index: 1;
}

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

.footer-copy {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.footer-socials {
    display: flex;
    gap: 10px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.9rem;
    background: var(--bg-glass);
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px var(--accent-glow-blue);
}

/* ============================
   Back to Top
   ============================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1.5px solid var(--border-glass);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
    backdrop-filter: blur(10px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* ============================
   Reveal Animations
   ============================ */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0);
}

/* ============================
   Responsive Design
   ============================ */
@media (max-width: 1000px) {
    .hero-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-cta { justify-content: center; }
    .hero-socials { justify-content: center; }
    .hero-title-wrapper { justify-content: center; }

    .hero-profile-card {
        flex: 0 0 auto;
        max-width: 380px;
        width: 100%;
    }

    .about-wrapper {
        grid-template-columns: 1fr;
    }

    .education-cards {
        grid-template-columns: 1fr;
    }

    .core-skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-card-solid);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        gap: 4px;
        border-left: 1px solid var(--border-glass);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 14px 24px;
    }

    .hamburger {
        display: flex;
    }

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

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

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-cards {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 14px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    :root {
        --section-padding: 60px 0;
    }

    .nav-container {
        padding: 0 16px;
    }

    .nav-logo {
        font-size: 1.15rem;
    }

    .hero {
        padding: 100px 16px 50px;
    }

    .hero-name {
        font-size: 2rem;
    }

    .hero-socials a {
        font-size: 0.75rem;
        padding: 6px 10px;
    }

    .profile-img-wrapper img {
        width: 80px;
        height: 80px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .project-filters {
        justify-content: center;
    }

    .core-skills-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

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

    .timeline {
        padding-left: 30px;
    }

    .timeline::before {
        left: 8px;
    }

    .timeline-dot {
        left: -27px;
    }

    .project-card {
        height: 300px;
    }

    .theme-toggle {
        display: flex;
        padding: 2px;
        margin-right: 8px;
    }

    .theme-btn {
        padding: 6px;
        gap: 0;
    }

    .theme-btn span {
        display: none;
    }
}