/* ==========================================================================
   CSS RESET & VARIABLE TOKENS
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Fonts */
    --font-header: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Transition Speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Max Widths */
    --container-max: 1200px;
    --header-height: 80px;

    /* Theme-specific tokens (Dark Theme Default) */
    --color-bg: #030712;
    --color-panel: rgba(17, 24, 39, 0.6);
    --color-panel-border: rgba(255, 255, 255, 0.08);
    --color-panel-shadow: rgba(0, 0, 0, 0.35);
    
    --color-text-primary: #f3f4f6;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;

    --color-accent-cyan: #00f0ff;
    --color-accent-pink: #f43f5e;
    --color-accent-green: #10b981;
    --color-accent-violet: #8b5cf6;

    --color-btn-secondary: rgba(255, 255, 255, 0.05);
    --color-btn-secondary-hover: rgba(255, 255, 255, 0.1);
    --color-header-bg: rgba(3, 7, 18, 0.75);

    --glow-opacity: 0.15;
}

/* Light Theme Variables */
body.light-theme {
    --color-bg: #f9fafb;
    --color-panel: rgba(255, 255, 255, 0.7);
    --color-panel-border: rgba(0, 0, 0, 0.06);
    --color-panel-shadow: rgba(0, 0, 0, 0.08);
    
    --color-text-primary: #111827;
    --color-text-secondary: #4b5563;
    --color-text-muted: #9ca3af;

    --color-accent-cyan: #0284c7;
    --color-accent-pink: #db2777;
    --color-accent-green: #059669;
    --color-accent-violet: #7c3aed;

    --color-btn-secondary: rgba(0, 0, 0, 0.04);
    --color-btn-secondary-hover: rgba(0, 0, 0, 0.08);
    --color-header-bg: rgba(249, 250, 251, 0.85);

    --glow-opacity: 0.06;
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-right: auto;
    margin-left: auto;
    padding-right: 1.5rem;
    padding-left: 1.5rem;
}

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

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

li {
    list-style: none;
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-panel-border);
    border-radius: 5px;
    border: 2px solid var(--color-bg);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* ==========================================================================
   GLOWING BACKGROUND AESTHETICS
   ========================================================================== */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: var(--glow-opacity);
    transition: opacity var(--transition-normal), background var(--transition-normal);
}

.orb-1 {
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--color-accent-cyan) 0%, transparent 70%);
}

.orb-2 {
    bottom: -15%;
    left: -5%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--color-accent-pink) 0%, transparent 70%);
}

.orb-3 {
    top: 40%;
    left: 30%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--color-accent-violet) 0%, transparent 70%);
}

/* ==========================================================================
   COMMON GLASS COMPONENTS
   ========================================================================== */
.glass-panel {
    background: var(--color-panel);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--color-panel-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 var(--color-panel-shadow);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

body.light-theme .glass-panel:hover {
    border-color: rgba(0, 0, 0, 0.12);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 12px;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
    transform: translateY(-2px);
}

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

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

.btn-block {
    display: flex;
    width: 100%;
}

.btn-icon {
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translate(2px, -2px);
}

/* Badges & Gradient Texts */
.badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    background: rgba(0, 240, 255, 0.1);
    color: var(--color-accent-cyan);
    border: 1px solid rgba(0, 240, 255, 0.25);
    border-radius: 9999px;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

body.light-theme .badge {
    background: rgba(2, 132, 199, 0.08);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent-text {
    color: var(--color-accent-cyan);
    text-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
}

/* Section Title layout */
.section-title-wrapper {
    margin-bottom: 3.5rem;
    text-align: center;
}

.section-title {
    font-family: var(--font-header);
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.title-bar {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
    margin: 0 auto;
    border-radius: 2px;
}

/* ==========================================================================
   SITE HEADER NAVIGATION
   ========================================================================== */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-panel-border);
    z-index: 1000;
    transition: background-color var(--transition-normal), border var(--transition-normal);
}

.nav-container {
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-header);
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link-item {
    font-family: var(--font-header);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

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

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

#theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    color: var(--color-text-secondary);
    background: var(--color-btn-secondary);
    border: 1px solid var(--color-panel-border);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

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

/* Light / Dark icon display */
body.dark-theme .sun-icon { display: block; }
body.dark-theme .moon-icon { display: none; }
body.light-theme .sun-icon { display: none; }
body.light-theme .moon-icon { display: block; }

#theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* Mobile Nav Toggle */
#mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    z-index: 1100;
}

.bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Hamburger animations */
#mobile-nav-toggle.open .bar-1 {
    transform: translateY(9px) rotate(45deg);
}
#mobile-nav-toggle.open .bar-2 {
    opacity: 0;
}
#mobile-nav-toggle.open .bar-3 {
    transform: translateY(-9px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 5rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

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

.hero-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-info .badge {
    margin-bottom: 1.5rem;
}

.hero-title {
    font-family: var(--font-header);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.04em;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-family: var(--font-header);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    height: 2.8rem;
    display: flex;
    align-items: center;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.25rem;
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-socials {
    display: flex;
    gap: 1.25rem;
}

.hero-socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: var(--color-text-secondary);
    background: var(--color-btn-secondary);
    border: 1px solid var(--color-panel-border);
    transition: transform var(--transition-fast), color var(--transition-fast), border var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-socials a:hover {
    color: var(--color-text-primary);
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.2);
}

#social-linkedin:hover {
    color: var(--color-accent-cyan);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
}

#social-email:hover {
    color: var(--color-accent-pink);
    box-shadow: 0 0 15px rgba(244, 63, 94, 0.25);
}

#social-phone:hover {
    color: var(--color-accent-green);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.25);
}

/* Hero graphic - SVG container */
.hero-graphic {
    display: flex;
    justify-content: center;
    position: relative;
}

.svg-wrapper {
    width: 100%;
    max-width: 450px;
    position: relative;
}

#interactive-hero-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
}

/* SVG Animating Keys */
.floating-node {
    animation: float-y 6s ease-in-out infinite alternate;
}

.node-center { animation-delay: 0s; }
.node-top { animation-dasharray: 2s; animation-duration: 5s; }
.node-bottom { animation-delay: 1.5s; animation-duration: 5.5s; }
.node-left { animation-delay: 0.8s; animation-duration: 6.5s; }
.node-right { animation-delay: 2.2s; animation-duration: 7s; }

.rotating-ring {
    transform-origin: 250px 240px;
    animation: rotate-ring 30s linear infinite;
}

.network-line {
    stroke-dasharray: 8 8;
    animation: dash-move 30s linear infinite;
}

.line-3, .line-4 {
    stroke-dasharray: none;
    animation: pulse-line 4s ease-in-out infinite alternate;
}

@keyframes float-y {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-12px); }
}

@keyframes rotate-ring {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes dash-move {
    to { stroke-dashoffset: -1000; }
}

@keyframes pulse-line {
    0% { opacity: 0.3; stroke-width: 1.5; }
    100% { opacity: 0.7; stroke-width: 2.5; }
}

/* Typing Indicator cursor */
.typed-cursor {
    font-weight: 300;
    color: var(--color-accent-cyan);
    animation: blink-cursor 1s step-end infinite;
    margin-left: 2px;
}

@keyframes blink-cursor {
    from, to { color: transparent }
    50% { color: var(--color-accent-cyan); }
}

/* ==========================================================================
   ABOUT ME SECTION
   ========================================================================== */
.about-section {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 3.5rem;
    align-items: start;
}

.about-content h3 {
    font-family: var(--font-header);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.about-content p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.25rem 0.5rem;
    background: var(--color-btn-secondary);
    border: 1px solid var(--color-panel-border);
    border-radius: 12px;
}

.stat-num {
    font-family: var(--font-header);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Details card side */
.about-details-card {
    padding: 2.25rem;
}

.about-details-card h4 {
    font-family: var(--font-header);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.profile-info-list {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
    margin-bottom: 2rem;
}

.profile-info-list li {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.info-val {
    font-size: 0.95rem;
    color: var(--color-text-primary);
    word-break: break-all;
}

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

.profile-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.interest-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-panel-border);
    color: var(--color-text-secondary);
    border-radius: 9999px;
}

body.light-theme .interest-tag {
    background: rgba(0, 0, 0, 0.03);
}

/* ==========================================================================
   TIMELINE (EXPERIENCE & EDUCATION)
   ========================================================================== */
.timeline-section {
    padding: 6rem 0;
}

.timeline-tabs {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: 12px;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-secondary);
    background: var(--color-btn-secondary);
    border: 1px solid var(--color-panel-border);
    transition: all var(--transition-normal);
}

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

.tab-btn.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, var(--color-accent-pink) 100%);
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.2);
    border-color: transparent;
}

.tab-icon {
    transition: transform var(--transition-fast);
}

.tab-btn:hover .tab-icon {
    transform: translateY(-1px);
}

.timeline-content {
    display: none;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-content.active {
    display: block;
    animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Structural Timeline */
.timeline {
    position: relative;
    padding: 1rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 16px;
    height: 100%;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-panel-border) 0%, var(--color-accent-cyan) 20%, var(--color-accent-pink) 80%, var(--color-panel-border) 100%);
}

.timeline-item {
    position: relative;
    padding-left: 3.5rem;
    margin-bottom: 3.5rem;
}

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

.timeline-dot {
    position: absolute;
    top: 24px;
    left: 7px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 3px solid var(--color-accent-cyan);
    box-shadow: 0 0 10px var(--color-accent-cyan);
    z-index: 1;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.timeline-item:nth-child(even) .timeline-dot {
    border-color: var(--color-accent-pink);
    box-shadow: 0 0 10px var(--color-accent-pink);
}

.timeline-date {
    font-family: var(--font-header);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-accent-cyan);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-item:nth-child(even) .timeline-date {
    color: var(--color-accent-pink);
}

.timeline-card {
    padding: 2rem;
}

.timeline-card:hover {
    transform: translateY(-3px);
}

.role-title {
    font-family: var(--font-header);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.company-name {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
}

.timeline-bullets {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.timeline-bullets li {
    position: relative;
    padding-left: 1.25rem;
}

.timeline-bullets li::before {
    content: '➔';
    position: absolute;
    left: 0;
    color: var(--color-accent-cyan);
    font-size: 0.8rem;
}

.timeline-item:nth-child(even) .timeline-bullets li::before {
    color: var(--color-accent-pink);
}

.edu-details {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.academic-grade {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-panel-border);
    font-size: 0.9rem;
}

body.light-theme .academic-grade {
    background: rgba(0, 0, 0, 0.02);
}

/* ==========================================================================
   SKILLS GRID
   ========================================================================== */
.skills-section {
    padding: 6rem 0;
}

.skills-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3.5rem;
}

.filter-btn {
    padding: 0.6rem 1.4rem;
    border-radius: 10px;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    background: var(--color-btn-secondary);
    border: 1px solid var(--color-panel-border);
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-text-primary);
    border-color: rgba(255, 255, 255, 0.15);
}

body.light-theme .filter-btn:hover {
    border-color: rgba(0, 0, 0, 0.1);
}

.filter-btn.active {
    background: var(--color-text-primary);
    color: var(--color-bg);
    border-color: var(--color-text-primary);
}

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

.skill-item {
    padding: 1.75rem;
}

.skill-item:hover {
    transform: translateY(-3px);
}

.skill-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.skill-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-panel-border);
    transition: all var(--transition-fast);
}

body.light-theme .skill-icon-wrapper {
    background: rgba(0, 0, 0, 0.02);
}

.skill-title {
    font-family: var(--font-header);
    font-size: 1.05rem;
    font-weight: 700;
}

.skill-progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

body.light-theme .skill-progress-bar {
    background: rgba(0, 0, 0, 0.05);
}

.progress-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 1.5s ease-out;
}

.skill-item[data-category="tech"] .progress-fill { background: var(--color-accent-cyan); }
.skill-item[data-category="tools"] .progress-fill { background: var(--color-accent-violet); }
.skill-item[data-category="soft"] .progress-fill { background: var(--color-accent-green); }

.skill-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.skill-pct {
    font-weight: 700;
    color: var(--color-text-primary);
}

/* Glow styles for icons based on category */
.cyan-glow { color: var(--color-accent-cyan); border-color: rgba(0, 240, 255, 0.2); }
.violet-glow { color: var(--color-accent-violet); border-color: rgba(139, 92, 246, 0.2); }
.green-glow { color: var(--color-accent-green); border-color: rgba(16, 185, 129, 0.2); }

/* ==========================================================================
   PROJECTS MATRIX
   ========================================================================== */
.projects-section {
    padding: 6rem 0;
}

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

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

.project-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 40px 0 var(--color-panel-shadow);
}

.project-img-placeholder {
    width: 100%;
    aspect-ratio: 16 / 10;
    position: relative;
    overflow: hidden;
    background: rgba(11, 15, 25, 0.5);
    border-bottom: 1px solid var(--color-panel-border);
}

.project-card-svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-card-svg {
    transform: scale(1.04);
}

.project-category-tag {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.3rem 0.75rem;
    border-radius: 6px;
    font-family: var(--font-header);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #ffffff;
}

.bg-cyan { background: var(--color-accent-cyan); box-shadow: 0 4px 10px rgba(0, 240, 255, 0.25); }
.bg-pink { background: var(--color-accent-pink); box-shadow: 0 4px 10px rgba(244, 63, 94, 0.25); }
.bg-green { background: var(--color-accent-green); box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25); }

.project-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-name {
    font-family: var(--font-header);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.project-desc {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.75rem;
}

.project-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-panel-border);
    border-radius: 6px;
    color: var(--color-text-muted);
}

body.light-theme .project-tags span {
    background: rgba(0, 0, 0, 0.02);
}

.project-links {
    display: flex;
    align-items: center;
}

.project-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-accent-cyan);
}

.project-link-btn:hover {
    color: var(--color-text-primary);
}

.project-link-btn svg {
    transition: transform var(--transition-fast);
}

.project-link-btn:hover svg {
    transform: translate(2px, -2px);
}

.project-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 600;
}

/* ==========================================================================
   CERTIFICATIONS MATRIX
   ========================================================================== */
.certifications-section {
    padding: 6rem 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.cert-card {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    align-items: flex-start;
}

.cert-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.12);
}

.cert-icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    height: 60px;
    border-radius: 12px;
    font-family: var(--font-header);
    font-weight: 800;
    font-size: 0.9rem;
    color: #ffffff;
    flex-shrink: 0;
}

/* Issuer Specific branding colors */
.bg-iim { background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%); }
.bg-google { background: linear-gradient(135deg, #ea4335 0%, #fbbc05 100%); }
.bg-coursera { background: linear-gradient(135deg, #0056d2 0%, #007bfd 100%); }
.bg-microsoft { background: linear-gradient(135deg, #00a4ef 0%, #2f80ed 100%); }

.cert-info h3 {
    font-family: var(--font-header);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.cert-issuer {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent-cyan);
    margin-bottom: 0.75rem;
}

.cert-card:nth-child(even) .cert-issuer {
    color: var(--color-accent-pink);
}

.cert-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   AWARDS GRID
   ========================================================================== */
.awards-section {
    padding: 6rem 0;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.award-card {
    padding: 2.25rem 1.75rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.award-card:hover {
    transform: translateY(-4px);
    border-color: rgba(234, 179, 8, 0.3);
}

.award-badge-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(234, 179, 8, 0.08);
    border: 1px solid rgba(234, 179, 8, 0.25);
    margin-bottom: 1.5rem;
    transition: transform var(--transition-fast);
}

.award-card:hover .award-badge-wrapper {
    transform: rotate(10deg) scale(1.05);
}

.award-card h3 {
    font-family: var(--font-header);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.award-org {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.award-desc {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.45;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-section {
    padding: 6rem 0 8rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 3.5rem;
    align-items: start;
}

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

.info-contact-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.75rem;
}

.info-contact-card:hover {
    transform: translateY(-2px);
}

.info-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    flex-shrink: 0;
}

.bg-cyan-glow { color: var(--color-accent-cyan); background: rgba(0, 240, 255, 0.08); border: 1px solid rgba(0, 240, 255, 0.2); }
.bg-violet-glow { color: var(--color-accent-violet); background: rgba(139, 92, 246, 0.08); border: 1px solid rgba(139, 92, 246, 0.2); }
.bg-green-glow { color: var(--color-accent-green); background: rgba(16, 185, 129, 0.08); border: 1px solid rgba(16, 185, 129, 0.2); }

.info-content h3 {
    font-family: var(--font-header);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.info-content p {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

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

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

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

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

.form-group label {
    font-family: var(--font-header);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

.form-group input, .form-group textarea {
    padding: 0.85rem 1.15rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-panel-border);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

body.light-theme .form-group input, body.light-theme .form-group textarea {
    background: rgba(0, 0, 0, 0.02);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-cyan);
    background: rgba(255, 255, 255, 0.05);
}

body.light-theme .form-group input:focus, body.light-theme .form-group textarea:focus {
    background: rgba(0, 0, 0, 0.03);
}

.form-group input.error, .form-group textarea.error {
    border-color: var(--color-accent-pink);
}

.error-msg {
    position: absolute;
    bottom: -1.25rem;
    left: 0.25rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-accent-pink);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
}

.error-msg.visible {
    opacity: 1;
}

.form-feedback {
    margin-top: 1.25rem;
    padding: 0.85rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    display: none;
    text-align: center;
}

.form-feedback.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-green);
    border: 1px solid rgba(16, 185, 129, 0.25);
    animation: fadeIn var(--transition-fast);
}

.form-feedback.error {
    display: block;
    background: rgba(244, 63, 94, 0.1);
    color: var(--color-accent-pink);
    border: 1px solid rgba(244, 63, 94, 0.25);
    animation: fadeIn var(--transition-fast);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
    border-top: 1px solid var(--color-panel-border);
    padding: 2.5rem 0;
    background: rgba(3, 7, 18, 0.4);
}

body.light-theme footer {
    background: rgba(249, 250, 251, 0.5);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

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

.footer-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

/* ==========================================================================
   SCROLL REVEAL STYLES (JAVASCRIPT BINDINGS)
   ========================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVENESS)
   ========================================================================== */

/* Up to 1024px (Laptops) */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .awards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 2rem;
    }
}

/* Up to 768px (Tablets) */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

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

    .hero-info {
        align-items: center;
    }

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

    .hero-desc {
        max-width: 100%;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .timeline-item {
        padding-left: 2.5rem;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-dot {
        left: 1px;
    }

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    /* Mobile Nav Toggle Show */
    #mobile-nav-toggle {
        display: flex;
    }

    #navbar {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--color-bg);
        border-top: 1px solid var(--color-panel-border);
        transition: left var(--transition-normal);
        z-index: 1050;
    }

    #navbar.open {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 100%;
        gap: 2.5rem;
        padding-bottom: 4rem;
    }

    .nav-link-item {
        font-size: 1.3rem;
    }
}

/* Up to 480px (Smartphones) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
        height: 2.2rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

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

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

    .timeline-card {
        padding: 1.5rem;
    }

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