/* Custom Design System & CSS Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Fira Code', monospace;

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

    /* Light Theme (Default fallback or toggled) */
    --bg-primary-light: #f8fafc;
    --bg-secondary-light: #ffffff;
    --bg-glass-light: rgba(255, 255, 255, 0.75);
    --border-color-light: rgba(0, 0, 0, 0.06);
    --text-primary-light: #0f172a;
    --text-secondary-light: #475569;
    --accent-cyan-light: #0284c7;
    --accent-purple-light: #1e40af;
    --accent-emerald-light: #047857;
    
    /* Dark Theme (Default) */
    --bg-primary-dark: #030712;
    --bg-secondary-dark: #0b0f19;
    --bg-glass-dark: rgba(11, 15, 25, 0.7);
    --border-color-dark: rgba(255, 255, 255, 0.06);
    --text-primary-dark: #f3f4f6;
    --text-secondary-dark: #9ca3af;
    --accent-cyan-dark: #0ea5e9;
    --accent-purple-dark: #3b82f6;
    --accent-emerald-dark: #10b981;
}

/* Theme Mappings */
[data-theme="dark"] {
    --bg-primary: var(--bg-primary-dark);
    --bg-secondary: var(--bg-secondary-dark);
    --bg-glass: var(--bg-glass-dark);
    --border-color: var(--border-color-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --accent-cyan: var(--accent-cyan-dark);
    --accent-purple: var(--accent-purple-dark);
    --accent-emerald: var(--accent-emerald-dark);
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan-dark) 0%, var(--accent-purple-dark) 100%);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --neon-glow: 0 0 20px rgba(14, 165, 233, 0.2);
}

[data-theme="light"] {
    --bg-primary: var(--bg-primary-light);
    --bg-secondary: var(--bg-secondary-light);
    --bg-glass: var(--bg-glass-light);
    --border-color: var(--border-color-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --accent-cyan: var(--accent-cyan-light);
    --accent-purple: var(--accent-purple-light);
    --accent-emerald: var(--accent-emerald-light);
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan-light) 0%, var(--accent-purple-light) 100%);
    --card-shadow: 0 10px 30px -10px rgba(148, 163, 184, 0.15);
    --neon-glow: 0 0 20px rgba(2, 132, 199, 0.08);
}

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

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 6rem 0;
    position: relative;
}

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

/* Background Glow Spheres */
.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    z-index: -1;
    pointer-events: none;
}

[data-theme="light"] .glow-sphere {
    opacity: 0.06;
}

.glow-sphere-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-cyan);
    top: 5%;
    right: -100px;
}

.glow-sphere-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-purple);
    top: 35%;
    left: -200px;
}

.glow-sphere-3 {
    width: 350px;
    height: 350px;
    background: var(--accent-emerald);
    bottom: 10%;
    right: 5%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

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

.text-glow {
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.4);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff !important;
    border: none;
    box-shadow: var(--neon-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(14, 165, 233, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    background: rgba(14, 165, 233, 0.05);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(14, 165, 233, 0.05);
    transform: translateY(-2px);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Header & Nav */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

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

.logo-slash {
    color: var(--accent-purple);
}

.logo-text {
    color: var(--text-primary);
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.25rem 0;
}

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

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

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

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

/* Hide sun/moon depending on theme */
[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

.sun-icon, .moon-icon {
    width: 20px;
    height: 20px;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 110;
}

.mobile-nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.section-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
}

.badge-new {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.15);
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

.badge-ping {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
    position: relative;
}

.badge-ping::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--accent-cyan);
    animation: ping 1.5s infinite;
}

@keyframes ping {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2.5); opacity: 0; }
}

.badge-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

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

.stat-number {
    font-size: 2rem;
    font-family: var(--font-heading);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* Terminal Simulator */
.hero-terminal {
    width: 100%;
    perspective: 1000px;
}

.terminal-container {
    background: rgba(3, 7, 18, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.8);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    height: 380px;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(8px);
}

.terminal-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.terminal-title {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
}

.terminal-status {
    color: var(--accent-emerald);
    font-weight: 600;
    font-size: 0.75rem;
}

.terminal-body {
    padding: 1.25rem;
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: #e5e7eb;
}

.terminal-line {
    display: flex;
    gap: 0.5rem;
    word-break: break-all;
}

.t-prompt {
    color: var(--accent-purple);
    font-weight: 600;
}

.t-command {
    color: #ffffff;
}

.t-response {
    color: rgba(255, 255, 255, 0.75);
    margin-left: 0.5rem;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    padding-left: 0.5rem;
}

.terminal-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.terminal-commands-prompt {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
}

.terminal-quick-actions {
    display: flex;
    gap: 0.5rem;
}

.terminal-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.terminal-btn:hover {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
}

/* Glass Card */
.glass-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(14, 165, 233, 0.2);
}

/* About Section */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 1.5rem auto;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
}

.about-text-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.about-text-card p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.about-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.about-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.b-icon {
    width: 16px;
    height: 16px;
    color: var(--accent-cyan);
}

.about-creative {
    display: flex;
    align-items: center;
}

.creative-card {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    justify-content: center;
    border-left: 4px solid var(--accent-purple);
}

.philosophy-slider-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 0.5rem 0;
}

.philosophy-slides {
    position: relative;
    flex-grow: 1;
    overflow: hidden;
    min-height: 120px;
    display: flex;
    align-items: center;
}

.philosophy-slide {
    position: absolute;
    width: 100%;
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
}

.philosophy-slide.active {
    position: relative;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.philosophy-quote {
    font-size: 1.15rem;
    font-style: italic;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.45;
    border-left: 2px solid var(--accent-cyan);
    padding-left: 1rem;
}

.slider-arrow {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.slider-arrow:hover {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
    box-shadow: var(--neon-glow);
}

.arrow-icon {
    width: 16px;
    height: 16px;
}

.location-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-purple);
    font-weight: 600;
    font-size: 0.9rem;
}

.loc-icon {
    width: 16px;
    height: 16px;
}

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

.skill-tab-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.skill-tab-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.skill-tab-btn.active {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
    box-shadow: var(--neon-glow);
}

.skills-panels-container {
    position: relative;
    min-height: 250px;
}

.skills-panel {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.skills-panel.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: var(--neon-glow);
}

.skill-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
}

.skill-icon {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--accent-cyan);
}

.skill-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

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

/* Projects Section */
.project-showcase-container {
    display: grid;
    grid-template-columns: 0.3fr 0.7fr;
    gap: 2rem;
    align-items: start;
}

.project-selector {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.project-select-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.project-select-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    background: rgba(14, 165, 233, 0.02);
}

.project-select-btn.active {
    background: rgba(14, 165, 233, 0.06);
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    border-left: 4px solid var(--accent-cyan);
}

.proj-num {
    font-size: 0.85rem;
    color: var(--accent-cyan);
    opacity: 0.7;
}

.proj-name {
    font-size: 0.95rem;
}

/* Project Workspace */
.project-workspace {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
}

.workspace-header {
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-dots {
    display: flex;
    gap: 6px;
}

.w-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
}

.workspace-url-bar {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 2rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    width: 60%;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.live-indicator {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-cyan);
    letter-spacing: 0.5px;
}

.workspace-content-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 420px;
}

.workspace-view {
    background: rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-right: 1px solid var(--border-color);
}

.mockup-img-container {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.mockup-img-container img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 16/10;
}

.workspace-meta {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.workspace-meta h3 {
    font-size: 1.6rem;
    margin-bottom: 0.25rem;
}

.project-client {
    color: var(--accent-purple);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.project-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.detail-row {
    display: grid;
    grid-template-columns: 0.3fr 0.7fr;
}

.detail-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.detail-val {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.15);
    color: var(--accent-cyan);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.workspace-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #111827;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    aspect-ratio: 16/10;
}

.workspace-mode-switch {
    display: flex;
    gap: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 2px;
    border-radius: 6px;
}

.view-mode-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.view-mode-btn:hover {
    color: var(--text-primary);
}

.view-mode-btn.active {
    background: var(--gradient-primary);
    color: #ffffff;
}

/* Timeline & Education */
.timeline-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 5rem;
}

.column-title {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.title-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-cyan);
}

.timeline {
    position: relative;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

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

.timeline-marker {
    position: absolute;
    top: 5px;
    left: -29.5px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--accent-cyan);
    transition: var(--transition);
}

.timeline-item:hover .timeline-marker {
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
}

.timeline-company {
    font-size: 0.85rem;
    color: var(--accent-purple);
    font-weight: 600;
    display: block;
    margin-bottom: 0.75rem;
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Certifications Sub-Section */
.certifications-container {
    border-top: 1px solid var(--border-color);
    padding-top: 4rem;
}

.subsection-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 3rem;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.cert-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: var(--transition);
}

.cert-card:hover {
    border-color: var(--accent-purple);
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.1);
}

.cert-icon {
    font-size: 1.75rem;
}

.cert-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
}

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

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3rem;
}

.contact-info h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    position: relative;
}

.info-icon {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: rgba(14, 165, 233, 0.06);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
}

.c-svg {
    width: 20px;
    height: 20px;
}

.info-details {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

.info-link:hover {
    color: var(--accent-cyan);
}

.btn-copy {
    position: absolute;
    right: 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    transition: var(--transition);
}

.btn-copy:hover {
    color: var(--accent-cyan);
    transform: scale(1.1);
}

.copy-svg {
    width: 18px;
    height: 18px;
}

/* Contact Form Card */
.contact-form-card {
    padding: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(14, 165, 233, 0.1);
    background: rgba(255, 255, 255, 0.04);
}

.btn-submit {
    width: 100%;
    border: none;
    padding: 0.85rem;
}

.send-svg {
    width: 16px;
    height: 16px;
}

.form-status {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 600;
    text-align: center;
}

.form-status.success {
    color: var(--accent-emerald);
}

.form-status.error {
    color: #ef4444;
}

/* Footer */
.main-footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    background: rgba(0, 0, 0, 0.2);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-tagline {
    font-weight: 500;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
        text-align: center;
    }

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

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

    .hero-stats {
        justify-content: center;
    }

    .project-showcase-container {
        grid-template-columns: 1fr;
    }

    .project-selector {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }

    .project-select-btn {
        flex-shrink: 0;
        padding: 0.75rem 1.25rem;
    }

    .project-select-btn.active {
        border-left: 1px solid var(--accent-cyan);
        border-bottom: 4px solid var(--accent-cyan);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    section {
        padding: 4rem 0;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .about-grid, .timeline-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .workspace-content-grid {
        grid-template-columns: 1fr;
    }

    .workspace-view {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* Mobile Header & Hamburger Menu */
    .mobile-nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        padding: 2.5rem;
        transition: var(--transition);
        z-index: 99;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .nav-link {
        font-size: 1.25rem;
    }

    .nav-cta {
        display: none;
    }

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

/* Quote Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 7, 18, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

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

.modal-card {
    max-width: 480px;
    width: 90%;
    border-top: 4px solid var(--accent-cyan) !important;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

.modal-close-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close-btn:hover {
    color: #ef4444;
    transform: scale(1.1);
}

.modal-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    color: var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.modal-card h3 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.modal-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Floating WhatsApp FAB */
.whatsapp-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25d366;
    color: #ffffff;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 20px rgba(37, 211, 102, 0.3);
    z-index: 90;
    transition: var(--transition);
}

.whatsapp-fab:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 25px rgba(37, 211, 102, 0.5);
    background-color: #20ba5a;
}

.wa-fab-icon {
    width: 28px;
    height: 28px;
}

/* Adjust layout on small screens */
@media (max-width: 768px) {
    .whatsapp-fab {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
    }
    .wa-fab-icon {
        width: 24px;
        height: 24px;
    }
}