/* ==========================================================================
   Modern Developer Portfolio System Design System & Stylesheet
   Theme: Glassmorphism, Dark Neon Accents, Dynamic Gradients & Micro-Interactions
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Variables
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - Dark Glass Mode (Default) */
    --bg-primary: #0a0e17;
    --bg-secondary: #121826;
    --bg-surface: rgba(21, 30, 47, 0.7);
    --bg-card: rgba(26, 36, 56, 0.55);
    --bg-card-hover: rgba(36, 50, 77, 0.75);

    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(0, 255, 159, 0.3);

    --text-primary: #f0f4fd;
    --text-secondary: #94a3b8;
    --text-muted: #8290a3;

    --accent-cyan: #00ff9f;
    --accent-blue: #34d399;
    --accent-purple: #7f00ff;
    --accent-pink: #ff007f;
    --accent-emerald: #00e676;

    --gradient-primary: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
    --gradient-purple: linear-gradient(135deg, #7f00ff 0%, #e100ff 100%);
    --gradient-emerald: linear-gradient(135deg, #00b09b 0%, #96c93d 100%);
    --gradient-sunset: linear-gradient(135deg, #ff0844 0%, #ffb199 100%);

    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 25px rgba(0, 255, 159, 0.25);
    --shadow-purple-glow: 0 0 25px rgba(127, 0, 255, 0.25);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Glass Mode Override */
body.light-mode {
    --bg-primary: #f4f7fc;
    --bg-secondary: #ffffff;
    --bg-surface: rgba(255, 255, 255, 0.85);
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.95);

    --border-color: rgba(0, 0, 0, 0.08);
    --border-color-hover: rgba(0, 191, 130, 0.45);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --accent-cyan: #047857;
    --accent-blue: #065f46;
    --accent-emerald: #047857;

    --shadow-glow: 0 10px 30px rgba(0, 191, 130, 0.18);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

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

button, input, textarea {
    font-family: inherit;
    outline: none;
    border: none;
}

/* --------------------------------------------------------------------------
   3. Background Mesh & Glow Effects
   -------------------------------------------------------------------------- */
.bg-glow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.25;
    animation: floatGlow 18s ease-in-out infinite alternate;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 55vw;
    height: 55vw;
    background: radial-gradient(circle, #00ff9f, rgba(0, 255, 159, 0.25));
}

.glow-2 {
    bottom: -15%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-emerald), rgba(0, 230, 118, 0.15));
    animation-delay: -5s;
}

.glow-3 {
    top: 40%;
    left: 30%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(0, 255, 159, 0.5), transparent);
    animation-delay: -10s;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='120'%20height='120'%20viewBox='0%200%20120%20120'%3E%3Cg%20fill='none'%20stroke='%2300ff9f'%20stroke-opacity='0.10'%20stroke-width='1'%3E%3Cpath%20d='M10%2010%20h60%20a8%208%200%200%201%208%208%20v40'/%3E%3Cpath%20d='M0%2070%20h20%20a6%206%200%200%201%206%206%20v30'/%3E%3Cpath%20d='M50%200%20v20%20a6%206%200%200%200%206%206%20h24'/%3E%3Cpath%20d='M110%2030%20v14%20a6%206%200%200%201%20-6%206%20h-30'/%3E%3Cpath%20d='M30%20120%20v-24%20a8%208%200%200%201%208%20-8%20h42'/%3E%3Cpath%20d='M0%20100%20h14'/%3E%3Cpath%20d='M80%20110%20h40'/%3E%3C/g%3E%3Cg%20fill='%2300ff9f'%20fill-opacity='0.22'%3E%3Ccircle%20cx='10'%20cy='10'%20r='2.5'/%3E%3Ccircle%20cx='78'%20cy='58'%20r='2.5'/%3E%3Ccircle%20cx='26'%20cy='106'%20r='2.5'/%3E%3Ccircle%20cx='56'%20cy='26'%20r='2.5'/%3E%3Ccircle%20cx='86'%20cy='42'%20r='2.5'/%3E%3Ccircle%20cx='38'%20cy='88'%20r='2.5'/%3E%3C/g%3E%3C/svg%3E"),
        radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 120px 120px, 32px 32px;
}

/* Light mode: darker circuit traces + softer glows for readability on white */
body.light-mode .bg-glow {
    opacity: 0.12;
}

body.light-mode .grid-overlay {
    background-image:
        url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='120'%20height='120'%20viewBox='0%200%20120%20120'%3E%3Cg%20fill='none'%20stroke='%23047857'%20stroke-opacity='0.18'%20stroke-width='1'%3E%3Cpath%20d='M10%2010%20h60%20a8%208%200%200%201%208%208%20v40'/%3E%3Cpath%20d='M0%2070%20h20%20a6%206%200%200%201%206%206%20v30'/%3E%3Cpath%20d='M50%200%20v20%20a6%206%200%200%200%206%206%20h24'/%3E%3Cpath%20d='M110%2030%20v14%20a6%206%200%200%201%20-6%206%20h-30'/%3E%3Cpath%20d='M30%20120%20v-24%20a8%208%200%200%201%208%20-8%20h42'/%3E%3Cpath%20d='M0%20100%20h14'/%3E%3Cpath%20d='M80%20110%20h40'/%3E%3C/g%3E%3Cg%20fill='%23047857'%20fill-opacity='0.30'%3E%3Ccircle%20cx='10'%20cy='10'%20r='2.5'/%3E%3Ccircle%20cx='78'%20cy='58'%20r='2.5'/%3E%3Ccircle%20cx='26'%20cy='106'%20r='2.5'/%3E%3Ccircle%20cx='56'%20cy='26'%20r='2.5'/%3E%3Ccircle%20cx='86'%20cy='42'%20r='2.5'/%3E%3Ccircle%20cx='38'%20cy='88'%20r='2.5'/%3E%3C/g%3E%3C/svg%3E"),
        radial-gradient(rgba(15, 23, 42, 0.08) 1px, transparent 1px);
    background-size: 120px 120px, 32px 32px;
}

@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 30px) scale(1.1); }
    100% { transform: translate(-30px, 60px) scale(0.95); }
}

/* --------------------------------------------------------------------------
   4. Glassmorphism Components & Utilities
   -------------------------------------------------------------------------- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

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

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

.accent-text {
    color: var(--accent-cyan);
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-header {
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(0, 255, 159, 0.1);
    border: 1px solid rgba(0, 255, 159, 0.25);
    border-radius: var(--radius-full);
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-description {
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.text-center { text-align: center; }

.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

/* --------------------------------------------------------------------------
   5. Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
}

.navbar-glass {
    background: rgba(10, 14, 23, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

body.light-mode .navbar-glass {
    background: rgba(255, 255, 255, 0.8);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    transition: var(--transition);
}

.nav-brand:hover {
    opacity: 0.85;
}

.nav-brand-text {
    display: flex;
    align-items: baseline;
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1;
}

.brand-fire {
    color: #fb713a;
}

.brand-tech {
    color: var(--text-secondary);
    font-weight: 600;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 6px rgba(255, 102, 0, 0.3));
}

.brand-code {
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.mobile-toggle {
    display: none;
    background: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.75rem 1.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.88rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #050b14;
    font-weight: 700;
}

.btn-glow:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    padding: 9rem 0 5rem;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* --- Badges row --- */
.hero-top-badges {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.pill-orange {
    background: rgba(251, 113, 42, 0.12);
    border: 1px solid rgba(251, 113, 42, 0.3);
    color: #fb713a;
}

.pill-dim {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-muted);
}

.pill-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #fb713a;
    box-shadow: 0 0 6px #fb713a;
    animation: pulse 2s infinite;
}

/* --- Headline --- */
.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 0.9rem;
}

/* --- Affiliation line --- */
.hero-affiliation {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.hero-affiliation i {
    color: #fb713a;
}

.hero-affiliation strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* --- Subtitle --- */
.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 2rem;
    max-width: 500px;
}

/* --- Stats bar (inline, no cards) --- */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 2.5rem;
    padding: 1.2rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--border-color);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1;
}

.stat-plus {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-cyan);
}

.stat-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.3rem;
}

/* --- CTA buttons --- */
.hero-cta {
    display: flex;
    gap: 1rem;
}

/* --- Affiliate link in affiliation line --- */
.affiliate-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: inherit;
    text-decoration: none;
    transition: opacity 0.2s;
}

.affiliate-link:hover {
    opacity: 0.75;
}

.affiliate-logo-inline {
    height: 18px;
    width: auto;
    object-fit: contain;
    vertical-align: middle;
    filter: drop-shadow(0 0 4px rgba(251, 113, 42, 0.5));
}



@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.35); }
}

/* ---- Avatar Card (right column top) ---- */
.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.avatar-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.2rem 1.5rem;
    position: relative;
    overflow: hidden;
}

.avatar-glow-ring {
    position: absolute;
    top: -60px;
    right: -60px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,255,159,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.avatar-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(0, 255, 159, 0.4);
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.15);
    flex-shrink: 0;
}

.avatar-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.avatar-name-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.avatar-title-text {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.avatar-title-sub {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.avatar-online-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
    animation: pulse 2s infinite;
}

.avatar-company {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}



/* Terminal Component */
.terminal-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.terminal-header {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.8rem 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-header .dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    background: rgba(5, 8, 15, 0.6);
    line-height: 1.7;
    overflow-x: auto;
}

.code-keyword { color: #ff79c6; }
.code-string  { color: #f1fa8c; }
.code-number  { color: #bd93f9; }
.code-emerald { color: #50fa7b; }
.code-comment { color: #6272a4; font-style: italic; }

/* --------------------------------------------------------------------------
   7. About Section
   -------------------------------------------------------------------------- */
.feature-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
}


.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 1.5rem;
}

.gradient-bg-1 { background: var(--gradient-primary); color: #050b14; }
.gradient-bg-2 { background: var(--gradient-purple); }
.gradient-bg-3 { background: var(--gradient-emerald); }

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.vp-proof {
    display: block;
    margin-top: auto;
    padding: 0.4rem 0.75rem;
    background: rgba(0, 255, 159, 0.06);
    border-left: 2px solid var(--accent-cyan);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    letter-spacing: 0.02em;
}



.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   8. Skills Section
   -------------------------------------------------------------------------- */
.tab-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.6rem 1.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
    background: var(--gradient-primary);
    color: #050b14;
    border-color: transparent;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.skill-head {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-icon {
    font-size: 1.4rem;
}

.color-node { color: #68a063; }
.color-python { color: #3776ab; }
.color-react { color: #61dafb; }
.color-js { color: #f7df1e; }
.color-supabase { color: #3ecf8e; }
.color-db { color: #336791; }
.color-docker { color: #2496ed; }
.color-aws { color: #ff9900; }
.color-api { color: #e535ab; }
.color-ai { color: #a855f7; }
.color-vue { color: #42b883; }
.color-tailwind { color: #34d399; }
.color-zustand { color: #fbbf24; }
.color-responsive { color: #00ff9f; }
.color-pwa { color: #ff007f; }
.color-synology { color: #00a6ed; }
.color-raspi { color: #c51a4a; }
.color-laravel { color: #ff2d20; }
.color-firebase { color: #ffca28; }
.color-orm { color: #34d399; }
.color-flutter { color: #54c5f8; }
.color-react-native { color: #61dafb; }
.color-swift { color: #ff6b35; }

.skill-name {
    font-weight: 600;
    font-size: 0.95rem;
    flex: 1;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1s ease-in-out;
}

.progress-fill-learning {
    background: linear-gradient(90deg, #ff6b35 0%, #fbbf24 100%);
}

.skill-percentage {
    align-self: flex-end;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

/* Skill sub-tags */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: -0.2rem;
}

.skill-tag {
    padding: 0.15rem 0.55rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Learning / Startup badge */
.skill-card-learning {
    border-color: rgba(255, 107, 53, 0.3) !important;
}

.skill-badge-learning {
    display: inline-flex;
    align-items: center;
    padding: 0.1rem 0.5rem;
    background: rgba(255, 107, 53, 0.15);
    border: 1px solid rgba(255, 107, 53, 0.35);
    border-radius: var(--radius-full);
    font-size: 0.68rem;
    font-weight: 700;
    color: #ff6b35;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-left: auto;
    flex-shrink: 0;
}


/* --------------------------------------------------------------------------
   9. Systems Showcase Section (Projects)
   -------------------------------------------------------------------------- */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    cursor: pointer;
}

.project-banner {
    height: 180px;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.project-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 23, 0.9) 100%);
}

.project-category-tag {
    position: relative;
    z-index: 2;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 255, 159, 0.3);
}

.project-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.project-result {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem;
    margin-bottom: 1.25rem;
    background: rgba(0, 230, 118, 0.08);
    border-left: 2px solid var(--accent-emerald);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-emerald);
    line-height: 1.5;
}

.project-result i {
    margin-top: 0.15rem;
    font-size: 0.9rem;
}

.project-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.project-live {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.project-live:hover {
    color: var(--accent-cyan);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
    margin-bottom: 1.25rem;
}

.mini-tag {
    padding: 0.2rem 0.65rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.project-footer-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
    10. How I Work Process Section
   -------------------------------------------------------------------------- */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.process-step {
    padding: 2rem;
    position: relative;
}

.process-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-cyan);
    opacity: 0.5;
    display: block;
    margin-bottom: 1rem;
    line-height: 1;
}

.process-step h3 {
    font-size: 1.15rem;
    margin-bottom: 0.6rem;
}

.process-step p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
}

/* --------------------------------------------------------------------------
    11. Experience Timeline
   -------------------------------------------------------------------------- */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding: 2rem;
    margin-left: 50px;
}

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 2rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan);
}

.timeline-active {
    border-color: rgba(0, 255, 159, 0.4);
    box-shadow: 0 0 25px rgba(0, 255, 159, 0.15);
}

.timeline-dot.dot-active {
    background: var(--accent-emerald);
    box-shadow: 0 0 15px var(--accent-emerald);
    animation: pulse 2s infinite;
}

.role-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.25rem;
    flex-wrap: wrap;
}

.role-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.badge-status {
    padding: 0.2rem 0.65rem;
    background: rgba(0, 230, 118, 0.15);
    border: 1px solid rgba(0, 230, 118, 0.3);
    border-radius: var(--radius-full);
    color: var(--accent-emerald);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-credential {
    padding: 0.2rem 0.65rem;
    background: rgba(127, 0, 255, 0.15);
    border: 1px solid rgba(127, 0, 255, 0.3);
    border-radius: var(--radius-full);
    color: #c084fc;
    font-size: 0.75rem;
    font-weight: 600;
}

.achievement-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.achievement-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.achievement-list li i {
    color: var(--accent-emerald);
    font-size: 0.82rem;
}

/* Dedicated Education Card Styling */
.education-card {
    max-width: 850px;
    margin: 0 auto;
    padding: 2.2rem;
    border: 1px solid var(--border-color);
}

.education-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.edu-icon-box {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(127, 0, 255, 0.15);
    border: 1px solid rgba(127, 0, 255, 0.3);
    color: #c084fc;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.edu-title-group {
    flex: 1;
}

.edu-title-group h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.edu-university {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.education-body p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.edu-highlights {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.edu-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    background: rgba(0, 255, 159, 0.08);
    border: 1px solid rgba(0, 255, 159, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-cyan);
}

/* Client Testimonials */
.testimonial-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.testimonial-quote {
    font-size: 1.8rem;
    color: var(--accent-cyan);
    opacity: 0.6;
}

.testimonial-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    font-style: italic;
    flex: 1;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.testimonial-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.testimonial-role {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   12. Contact Section & Pitch Form
   -------------------------------------------------------------------------- */
.contact-box {
    padding: 3.5rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(0, 255, 159, 0.1);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.item-title {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.item-value {
    font-weight: 600;
    font-size: 1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    padding: 0.85rem 1.1rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

body.light-mode .form-group input, 
body.light-mode .form-group textarea {
    background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 255, 159, 0.15);
}

/* --------------------------------------------------------------------------
   13. Footer & Modal
   -------------------------------------------------------------------------- */
.footer {
    padding: 2.5rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(251, 113, 42, 0.4));
}

.footer-brand-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
}

.footer-brand-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-brand-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--text-muted);
    max-width: 480px;
}

.footer-contact {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-contact a {
    color: var(--accent-cyan);
}

.footer-contact a:hover {
    text-decoration: underline;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.85rem;
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 100%;
    max-width: 750px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    padding: 2.5rem;
}

.modal-close {
    position: absolute;
    top: 1.2rem;
    right: 1.5rem;
    background: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: var(--accent-cyan);
}

/* Modal content sections */
.modal-head {
    margin-bottom: 1.5rem;
}

.modal-head .section-tag {
    margin-bottom: 0.5rem;
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.modal-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.modal-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.modal-stat {
    padding: 1rem;
    text-align: center;
}

.modal-stat-value {
    font-weight: 700;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.modal-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.modal-block {
    margin-bottom: 1.5rem;
}

.modal-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.modal-block p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

.modal-section-title--tags {
    margin-bottom: 0.75rem;
}

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

.modal-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.modal-feature-item i {
    color: var(--accent-emerald);
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.modal-tags .mini-tag {
    padding: 0.3rem 0.8rem;
    font-size: 0.82rem;
}

.modal-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.modal-cta .btn {
    flex: 1;
    text-align: center;
}

/* --------------------------------------------------------------------------
   14. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .nav-menu {
        display: none;
    }

    .nav-menu.open {
        display: flex;
        flex-direction: column;
        gap: 1.25rem;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 23, 0.95);
        padding: 1.5rem;
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
    }

    body.light-mode .nav-menu.open {
        background: rgba(255, 255, 255, 0.95);
    }

    .mobile-toggle {
        display: block;
    }

    .contact-box {
        padding: 2rem;
    }

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