/* ===========================================
   DESIGN SYSTEM — Premium Salesforce Portfolio
   Author: Piyush Aneja
   Palette: Deep navy + Salesforce cyan + green
   =========================================== */

/* --- Custom Properties (Design Tokens) --- */
:root {
    /* Core Palette */
    --bg-primary: #0a0f1c;
    --bg-secondary: #111827;
    --bg-tertiary: #1a2332;

    /* SLDS-Inspired Enterprise Colors */
    --accent-cyan: #0176D3;
    /* SLDS Brand Blue */
    --accent-blue: #00A1E0;
    /* Salesforce Light Blue */
    --accent-green: #2E844A;
    /* SLDS Success Green */
    --accent-purple: #1B96FF;
    /* SLDS Accessible Link Blue */

    /* Text Colors — WCAG AA compliant on dark bg */
    --text-primary: #ffffff;
    --text-secondary: #B0C4DF;
    /* SLDS Cloud Blue */
    --text-muted: #7492b4;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 180, 216, 0.35);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
    --gradient-hero: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
    --gradient-green: linear-gradient(135deg, var(--accent-green), #10b981);

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

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.25s var(--ease-out);
    --transition-medium: 0.5s var(--ease-out);
    --transition-slow: 0.8s var(--ease-out);

    /* Layout */
    --max-width: 1200px;
    --section-padding: 120px;
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    /* Subtle dot-grid background for tech feel */
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 32px 32px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* --- Accessibility --- */

/* Skip Link */
.skip-link {
    position: fixed;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-radius: 0 0 12px 12px;
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Focus outlines for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* --- Utility --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 3rem);
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

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

/* --- Glass Card Base --- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        background var(--transition-fast);
}

.glass:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
    box-shadow: 0 12px 40px rgba(0, 180, 216, 0.08);
}

/* --- Ambient Background Blobs --- */
.blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(160px);
    z-index: -1;
    opacity: 0.2;
    pointer-events: none;
    will-change: transform;
}

.blob-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-cyan);
    top: -200px;
    left: -200px;
    animation: blobFloat 30s ease-in-out infinite alternate;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-purple);
    bottom: -150px;
    right: -150px;
    animation: blobFloat 25s ease-in-out infinite alternate-reverse;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: var(--accent-green);
    top: 50%;
    left: 60%;
    animation: blobFloat 35s ease-in-out infinite alternate;
}

@keyframes blobFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(60px, -40px) scale(1.05);
    }

    66% {
        transform: translate(-30px, 60px) scale(0.95);
    }

    100% {
        transform: translate(40px, 20px) scale(1.02);
    }
}

/* ===========================================
   NAVBAR
   =========================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    background: rgba(10, 15, 28, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 3rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
    z-index: 1001;
}

.logo-icon {
    color: var(--accent-cyan);
    transition: transform var(--transition-fast);
}

.logo:hover .logo-icon {
    transform: translateY(-2px);
}

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

/* Nav Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width var(--transition-fast);
}

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

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

/* Nav CTA Button */
.nav-cta {
    background: var(--gradient-primary);
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    color: var(--bg-primary) !important;
    padding: 0.6rem 1.4rem !important;
    border-radius: 50px;
    font-weight: 600 !important;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.4);
}

/* Hamburger Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    width: 44px;
    height: 44px;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
    transform-origin: center;
}

/* Hamburger open state */
.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===========================================
   SECTION TITLE
   =========================================== */
.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShimmer 6s ease infinite;
}

@keyframes gradientShimmer {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: var(--nav-height);
    position: relative;
}

.hero-content {
    max-width: 800px;
    padding-bottom: 3rem;
}

.hero-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.1s forwards;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.05;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.25s forwards;
}

.hero-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.4s forwards;
}

.typing-cursor {
    display: inline-block;
    font-weight: 300;
    color: var(--accent-cyan);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 800px;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.55s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.7s forwards;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 180, 216, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem 0;
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.7s var(--ease-out) 0.9s forwards;
}

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

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0;
    white-space: nowrap;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.4rem;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

/* ===========================================
   ABOUT SECTION
   =========================================== */
.about-card {
    padding: 3rem;
    max-width: 900px;
    margin: 2rem auto 0;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ===========================================
   SKILLS SECTION
   =========================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.skill-card {
    padding: 2rem;
    position: relative;
    overflow: hidden;
    cursor: default;
    transform-style: preserve-3d;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-card:hover {
    transform: translateY(-6px);
}

.skill-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.15), rgba(52, 211, 153, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--accent-cyan);
    transition: transform var(--transition-fast);
}

.skill-card:hover .skill-icon {
    transform: scale(1.1) rotate(5deg);
}

.skill-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

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

/* Skill Tags */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.3rem 0.75rem;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 180, 216, 0.2);
    transition: all var(--transition-fast);
}

.skill-card:hover .tag {
    background: rgba(0, 180, 216, 0.18);
    border-color: rgba(0, 180, 216, 0.35);
}

/* ===========================================
   EXPERIENCE SECTION
   =========================================== */
.timeline {
    position: relative;
    max-width: 950px;
    margin: 2rem auto 0;
    padding-left: 40px;
}

.timeline-line {
    position: absolute;
    top: 0;
    left: 16px;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-green), transparent);
    opacity: 0.4;
}

.timeline-item {
    position: relative;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    top: 32px;
    left: -32px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-cyan);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.2), 0 0 20px rgba(0, 180, 216, 0.3);
    z-index: 2;
}

.timeline-date {
    display: inline-block;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    background: rgba(0, 180, 216, 0.12);
    color: var(--accent-cyan);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(0, 180, 216, 0.25);
}

.timeline-content h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.timeline-company {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.timeline-project {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    padding: 0.6rem 1rem;
    background: rgba(52, 211, 153, 0.06);
    border-radius: 10px;
    border-left: 3px solid var(--accent-green);
}

/* Metrics Bar */
.metrics-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1.25rem 0;
    margin-bottom: 1.5rem;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.metric {
    text-align: center;
    flex: 1;
    min-width: 80px;
}

.metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.2rem;
}

/* Duties List */
.duties li {
    position: relative;
    padding-left: 1.6rem;
    margin-bottom: 0.9rem;
    color: var(--text-secondary);
    font-size: 0.97rem;
    line-height: 1.7;
}

.duties li::before {
    content: '▹';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-cyan);
    font-weight: bold;
    font-size: 1.1rem;
}

/* ===========================================
   CERTIFICATIONS SECTION
   =========================================== */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.cert-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    cursor: default;
    transition: all var(--transition-fast);
}

.cert-card:hover {
    transform: translateX(8px);
}

.cert-badge {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.15), rgba(0, 119, 182, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    transition: transform var(--transition-fast);
}

.cert-badge.mulesoft {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.15), rgba(16, 185, 129, 0.15));
    color: var(--accent-green);
}

.cert-badge.agentforce {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(219, 39, 119, 0.15));
    color: #ec4899;
}

.cert-card:hover .cert-badge {
    transform: scale(1.15) rotate(10deg);
}

.cert-name {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Superbadges */
.sub-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 3rem 0 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

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

.superbadge-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.superbadge-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
}

.superbadge-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(217, 119, 6, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f59e0b;
    flex-shrink: 0;
}

.superbadge-card span {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}


/* ===========================================
   ARTICLES SECTION
   =========================================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.article-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.article-card:hover::before {
    opacity: 1;
}

.article-card:hover {
    transform: translateY(-6px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 40px rgba(0, 180, 216, 0.12);
}

.article-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.12), rgba(139, 92, 246, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    margin-bottom: 1.25rem;
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.article-card:hover .article-card-icon {
    transform: scale(1.1) rotate(5deg);
}

.article-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.article-card:hover h3 {
    color: var(--accent-cyan);
}

.article-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
    flex: 1;
    margin-bottom: 1.25rem;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.article-tag {
    padding: 0.25rem 0.65rem;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 500;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.article-card-arrow {
    position: absolute;
    top: 1.75rem;
    right: 1.75rem;
    color: var(--text-muted);
    opacity: 0;
    transform: translate(-4px, 4px);
    transition: all var(--transition-fast);
}

.article-card:hover .article-card-arrow {
    opacity: 1;
    transform: translate(0, 0);
    color: var(--accent-cyan);
}

.articles-cta {
    text-align: center;
    margin-top: 0.5rem;
}

/* ===========================================
   EDUCATION & AWARDS SECTION
   =========================================== */
.edu-awards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
    align-items: start;
}

.edu-card {
    padding: 2.5rem;
    text-align: center;
}

.edu-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.15), rgba(52, 211, 153, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--accent-cyan);
}

.edu-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.edu-institution {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.edu-year {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.edu-gpa {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.25);
}

.gpa-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gpa-value {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* Awards */
.awards-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Education Column (stacked cards) */
.edu-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.edu-highlights {
    list-style: none;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.edu-highlights li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

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

.edu-card-small {
    padding: 1.5rem 2rem;
    text-align: center;
}

.edu-card-small h3 {
    font-size: 1.15rem;
}


.award-card {
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.award-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-green);
    border-radius: 4px 0 0 4px;
}

.award-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    padding-left: 0.75rem;
}

.award-org {
    font-size: 0.88rem;
    color: var(--accent-green);
    font-weight: 500;
    margin-bottom: 0.4rem;
    padding-left: 0.75rem;
}

.award-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    padding-left: 0.75rem;
}

/* ===========================================
   PUBLICATIONS SECTION
   =========================================== */
.publication-card {
    padding: 2.5rem;
    margin-top: 1.5rem;
}

.pub-header h4 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.pub-meta {
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.pub-duties {
    margin-top: 1.5rem;
}

/* ===========================================
   CONTACT SECTION
   =========================================== */
.contact-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 3.5rem;
    text-align: center;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 1rem auto 2.5rem;
    line-height: 1.7;
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0.85rem 1.75rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-fast);
}

.contact-link svg {
    flex-shrink: 0;
    color: var(--accent-cyan);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 180, 216, 0.3);
}

.contact-link:hover svg {
    color: var(--bg-primary);
}

/* ===========================================
   FOOTER
   =========================================== */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===========================================
   SCROLL REVEAL
   =========================================== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

/* Stagger reveal for grid children */
.reveal-stagger>* {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal-stagger.active>*:nth-child(1) {
    transition-delay: 0.05s;
}

.reveal-stagger.active>*:nth-child(2) {
    transition-delay: 0.1s;
}

.reveal-stagger.active>*:nth-child(3) {
    transition-delay: 0.15s;
}

.reveal-stagger.active>*:nth-child(4) {
    transition-delay: 0.2s;
}

.reveal-stagger.active>*:nth-child(5) {
    transition-delay: 0.25s;
}

.reveal-stagger.active>*:nth-child(6) {
    transition-delay: 0.3s;
}

.reveal-stagger.active>*:nth-child(7) {
    transition-delay: 0.35s;
}

.reveal-stagger.active>*:nth-child(8) {
    transition-delay: 0.4s;
}

.reveal-stagger.active>* {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   RESPONSIVE — TABLET (≤ 1024px)
   =========================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .hero-name {
        font-size: clamp(2.5rem, 7vw, 4.5rem);
    }

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

    .timeline {
        padding-left: 30px;
    }
}

/* ===========================================
   RESPONSIVE — MOBILE (≤ 768px)
   =========================================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --nav-height: 70px;
    }

    /* Mobile Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: min(300px, 80vw);
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1.5rem;
        background: rgba(10, 15, 28, 0.97);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        transform: translateX(100%);
        transition: transform var(--transition-medium);
        z-index: 1000;
        border-left: 1px solid var(--glass-border);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    /* Body scroll lock */
    body.nav-open {
        overflow: hidden;
    }

    /* Hero adjustments */
    .hero-title {
        font-size: clamp(1.3rem, 5vw, 1.8rem);
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .stat-item {
        min-width: 40%;
        flex: 1 0 40%;
    }

    .stat-divider {
        display: none;
    }

    .stat-number,
    .stat-suffix {
        font-size: 1.8rem;
    }

    /* Skills */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    /* Timeline */
    .timeline {
        padding-left: 24px;
    }

    .timeline-line {
        left: 8px;
    }

    .timeline-dot {
        left: -24px;
        width: 12px;
        height: 12px;
        top: 28px;
    }

    .timeline-item {
        padding: 1.5rem;
    }

    .timeline-content h3 {
        font-size: 1.3rem;
    }

    .metrics-bar {
        gap: 1rem;
    }

    .metric {
        min-width: 60px;
    }

    .metric-value {
        font-size: 1.2rem;
    }

    /* Certifications */
    .certs-grid {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-card {
        padding: 2rem;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .contact-link {
        width: 100%;
        justify-content: center;
    }
}

/* ===========================================
   RESPONSIVE — SMALL MOBILE (≤ 480px)
   =========================================== */
@media (max-width: 480px) {
    .hero-name {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }

    .about-card {
        padding: 1.5rem;
    }

    .about-text p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}