/* ==========================================================================
   DESIGN SYSTEM & CUSTOM VARIABLES
   ========================================================================== */
:root {
    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Colors - Dark Theme (Default) */
    --bg-primary: #08080c;
    --bg-secondary: #101016;
    --bg-tertiary: #161622;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    
    --accent-solid: #6366f1;
    --accent-solid-rgb: 99, 102, 241;
    --accent-gradient: linear-gradient(135deg, #6366f1, #a855f7);
    --accent-gradient-2: linear-gradient(135deg, #06b6d4, #3b82f6);
    --accent-gradient-glow: rgba(99, 102, 241, 0.15);
    
    --card-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
    --card-shadow-hover: 0 20px 40px -5px rgba(99, 102, 241, 0.12);
    
    --glass-bg: rgba(16, 16, 22, 0.65);
    --glass-bg-hover: rgba(22, 22, 34, 0.75);
    --glass-blur: blur(14px);
    
    /* Layout Sizes */
    --header-height: 80px;
    --container-max-width: 1200px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(15, 23, 42, 0.16);
    
    --accent-solid: #4f46e5;
    --accent-solid-rgb: 79, 70, 229;
    --accent-gradient: linear-gradient(135deg, #4f46e5, #9333ea);
    --accent-gradient-2: linear-gradient(135deg, #0891b2, #2563eb);
    --accent-gradient-glow: rgba(79, 70, 229, 0.08);
    
    --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
    --card-shadow-hover: 0 20px 40px -5px rgba(79, 70, 229, 0.15);
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-hover: rgba(255, 255, 255, 0.85);
    --glass-blur: blur(14px);
}

/* ==========================================================================
   RESET & GLOBAL LAYOUT
   ========================================================================== */
*, *::before, *::after {
    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-sans);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

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

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

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

/* Common Helper Classes */
.section-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.font-outfit {
    font-family: var(--font-display);
}

.font-bold {
    font-weight: 700;
}

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

/* Badge styling */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 9999px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    width: fit-content;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #10b981;
    box-shadow: 0 0 8px #10b981;
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-primary);
}

/* ==========================================================================
   LOADING & INTERACTIVE GENERAL STYLES
   ========================================================================== */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity var(--transition-normal) ease, visibility var(--transition-normal);
}

.loader-overlay.hide {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    width: 200px;
}

.loader-logo {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
    animation: pulse 1.5s infinite ease-in-out;
}

.loader-track {
    width: 100%;
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.loader-bar {
    width: 0%;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 2px;
    animation: fill-loader 2s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
}

/* Floating social elements */
.floating-socials {
    position: fixed;
    bottom: 40px;
    left: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 100;
}

.floating-socials a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
    color: var(--text-secondary);
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.floating-socials a:hover {
    transform: translateY(-5px);
    color: var(--text-primary);
    border-color: var(--border-hover);
    box-shadow: var(--card-shadow-hover);
}

/* Back-to-top button */
.back-to-top-btn {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
    color: var(--text-secondary);
    box-shadow: var(--card-shadow);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal), color var(--transition-fast), border-color var(--transition-fast);
}

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

.back-to-top-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-5px);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

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

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

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-link-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.btn-link-icon:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
    transform: scale(1.1);
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background var(--transition-normal);
}

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

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo-bracket {
    font-weight: 500;
    opacity: 0.8;
}

.logo-text {
    color: var(--text-primary);
    margin: 0 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
}

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

.sun-icon {
    display: none;
}

.dark-theme .moon-icon {
    display: none;
}

.dark-theme .sun-icon {
    display: block;
}

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

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--header-height) + 40px);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: auto;
    z-index: 1;
}

.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    width: 100%;
}

.hero-text-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-badge {
    margin-bottom: 8px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--text-secondary);
    min-height: 38px;
}

.typing-cursor {
    animation: blink 0.8s infinite;
    color: var(--accent-solid);
    margin-left: 2px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 540px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-gradient-glow) 0%, transparent 70%);
    z-index: 1;
    filter: blur(20px);
}

.profile-card {
    position: relative;
    z-index: 2;
    width: 290px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.profile-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.profile-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.profile-card:hover .profile-image {
    transform: scale(1.05);
}

.profile-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: skewX(-20deg);
}

.profile-card:hover .profile-shimmer {
    animation: shimmer 1.5s infinite;
}

.profile-details {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.profile-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
}

.profile-role {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.profile-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.pulse-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-solid);
    position: relative;
}

.pulse-indicator::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--accent-solid);
    animation: pulse-ring 1.5s infinite ease-out;
}

/* ==========================================================================
   FEATURED ACHIEVEMENTS BAR
   ========================================================================== */
.achievements-section {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, transparent, var(--bg-secondary));
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 20px;
}

.achievement-card {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    backdrop-filter: var(--glass-blur);
    transition: all var(--transition-fast);
}

.achievement-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.achievement-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
}

.gradient-blue {
    background: var(--accent-gradient-2);
    color: #ffffff;
}

.gradient-purple {
    background: var(--accent-gradient);
    color: #ffffff;
}

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

.achievement-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
}

.achievement-label-main {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.1;
}

.achievement-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* ==========================================================================
   SECTIONS GENERAL DESIGN
   ========================================================================== */
section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
    position: relative;
    max-width: 600px;
}

.section-header.center-align {
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-solid);
    display: block;
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    margin-top: 12px;
    border-radius: 2px;
}

.section-header.center-align .section-line {
    margin-left: auto;
    margin-right: auto;
}

/* Scroll enter animations */
.scroll-anim {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow) ease, transform var(--transition-slow) ease;
}

.scroll-anim.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   ABOUT ME & CURRENTLY LEARNING
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
}

.about-bio {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.lead-text {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.6;
}

.subsection-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.interests-container {
    margin-top: 16px;
}

.interests-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag-pill:hover {
    border-color: var(--accent-solid);
    transform: translateY(-2px);
    background: var(--bg-tertiary);
}

.tag-pill i {
    width: 14px;
    height: 14px;
    color: var(--accent-solid);
}

.learning-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.learning-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-gradient);
}

.learning-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.learning-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-solid);
}

.learning-header h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.learning-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.learning-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.learning-list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.learning-bullet {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-solid);
    margin-top: 8px;
    flex-shrink: 0;
    box-shadow: 0 0 6px var(--accent-solid);
}

.learning-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.learning-text strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.learning-text span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   TECHNICAL STACK VISUALIZER
   ========================================================================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.tech-category-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition-normal);
}

.tech-category-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
}

.tech-category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.tech-category-header i {
    color: var(--accent-solid);
    width: 24px;
    height: 24px;
}

.tech-category-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tech-badge:hover {
    border-color: var(--text-secondary);
    background: var(--bg-primary);
}

.badge-icon {
    width: 14px;
    height: 14px;
}

/* Custom icons colors */
.h-html { color: #e34c26; }
.h-css { color: #264de4; }
.h-js { color: #f0db4f; }
.h-py { color: #306998; }
.h-django { color: #092e20; }
.h-sql { color: #00758f; }
.h-git { color: #f05032; }
.h-github { color: var(--text-primary); }
.h-vscode { color: #007acc; }
.h-cad { color: #a21a1a; }
.h-n8n { color: #ff6d5a; }
.h-gemini { color: #1a73e8; }
.h-rest { color: #4caf50; }
.h-prompt { color: #e91e63; }

.skills-concepts-container {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    backdrop-filter: var(--glass-blur);
}

.concepts-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.concepts-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.concept-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.concept-item:hover {
    border-color: var(--accent-solid);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.concept-item i {
    width: 18px;
    height: 18px;
    color: var(--accent-solid);
}

/* ==========================================================================
   FEATURED PROJECTS SECTION
   ========================================================================== */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 500;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.filter-btn.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--card-shadow-hover);
}

.project-media {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, rgba(16, 16, 22, 0.8) 0%, transparent 100%);
    pointer-events: none;
}

.badge-cs {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(99, 102, 241, 0.85);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.badge-cs i {
    width: 12px;
    height: 12px;
}

.project-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-meta-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.project-tag-pill {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-solid);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.project-summary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.project-metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    flex-grow: 1;
}

.metric-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.85rem;
}

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

.metric-item span {
    color: var(--text-secondary);
}

.metric-item .tech-pills {
    color: var(--accent-solid);
    font-weight: 500;
}

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

/* Hiding cards smoothly */
.project-card.hide {
    display: none;
}

/* ==========================================================================
   TIMELINE SECTION
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 40px;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 80px;
}

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

.timeline-dot {
    position: absolute;
    left: 36px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--text-secondary);
    border: 2px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--border-color);
    z-index: 2;
}

.timeline-dot-glowing {
    position: absolute;
    left: 33px;
    top: 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: 3px solid var(--bg-primary);
    z-index: 2;
}

.timeline-dot-glowing::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--accent-solid);
    animation: pulse-ring 2s infinite ease-out;
}

.timeline-date {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--card-shadow);
    transition: border-color var(--transition-fast);
}

.timeline-content:hover {
    border-color: var(--border-hover);
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
}

.timeline-role {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-solid);
    margin: 4px 0 10px 0;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   GITHUB STATISTICS SECTION
   ========================================================================== */
.github-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: stretch;
}

.github-stats-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--card-shadow);
}

.github-profile-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.git-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--accent-solid);
}

.git-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.git-username {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
}

.git-link {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.git-link:hover {
    color: var(--accent-solid);
}

.git-link i {
    width: 12px;
    height: 12px;
}

.git-stats-meters {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.git-meter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.git-meter-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.github-activity-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--card-shadow);
}

.activity-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 12px;
}

.activity-keys {
    display: flex;
    align-items: center;
    gap: 4px;
}

.activity-key-box {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.github-activity-grid {
    display: grid;
    grid-template-columns: repeat(26, 1fr);
    grid-template-rows: repeat(7, 1fr);
    gap: 4px;
    width: 100%;
    margin-top: auto;
}

.activity-cell {
    aspect-ratio: 1;
    border-radius: 2px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.level-0 { background-color: var(--bg-tertiary); border: 1px solid var(--border-color); }
.level-1 { background-color: #0e4429; }
.level-2 { background-color: #006d32; }
.level-3 { background-color: #26a641; }
.level-4 { background-color: #39d353; }

.activity-cell:hover {
    transform: scale(1.3);
    z-index: 10;
}

/* ==========================================================================
   EDUCATION SECTION
   ========================================================================== */
.education-card {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: border-color var(--transition-fast);
}

.education-card:hover {
    border-color: var(--border-hover);
}

.education-glow {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, var(--accent-gradient-glow) 0%, transparent 70%);
    filter: blur(20px);
    pointer-events: none;
}

.edu-header {
    display: flex;
    gap: 24px;
    align-items: center;
    margin-bottom: 24px;
}

.edu-logo-fallback {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.edu-meta {
    display: flex;
    flex-direction: column;
}

.edu-school {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
}

.edu-degree {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-solid);
    margin-top: 4px;
}

.edu-major {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.edu-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.edu-date {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.edu-date i {
    width: 16px;
    height: 16px;
    color: var(--accent-solid);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 50px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.panel-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
}

.panel-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 10px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.info-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-solid);
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.info-text span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 600;
}

.info-text a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.info-text a:hover {
    color: var(--accent-solid);
}

.contact-form-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--card-shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    position: relative;
    width: 100%;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

/* Floating labels effect */
.form-label {
    position: absolute;
    left: 16px;
    top: 15px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    pointer-events: none;
    transition: all var(--transition-fast);
}

.form-textarea ~ .form-label {
    top: 16px;
}

.form-input:focus,
.form-input:not(:placeholder-shown) {
    border-color: var(--accent-solid);
    outline: none;
    background: var(--bg-primary);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -10px;
    left: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg-secondary);
    padding: 0 6px;
    color: var(--accent-solid);
    border-radius: 4px;
}

.error-msg {
    display: none;
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 6px;
    padding-left: 4px;
}

.form-group.invalid .form-input {
    border-color: #ef4444;
}

.form-group.invalid .error-msg {
    display: block;
}

.btn-submit {
    width: 100%;
}

.form-status-alert {
    display: none;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
}

.form-status-alert.success {
    display: block;
    background-color: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.form-status-alert.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 50px 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo span {
    font-size: 1.5rem;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-width: 320px;
}

.footer-links {
    display: flex;
    gap: 30px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-copyright {
    grid-column: 1 / -1;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    margin-top: 10px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   CASE STUDIES MODAL OVERLAYS
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--transition-normal) ease, visibility var(--transition-normal);
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.modal-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 680px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    transform: translateY(30px) scale(0.98);
    transition: transform var(--transition-normal) ease;
}

.modal-overlay.open .modal-card {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-solid);
    color: #ffffff;
    border-color: transparent;
}

.modal-content-container {
    overflow-y: auto;
    padding: 36px;
    height: 100%;
}

.modal-header-meta {
    margin-bottom: 24px;
    padding-right: 40px;
}

.modal-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-solid);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 6px;
}

.modal-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.modal-graphic {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.modal-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-metrics-bar {
    display: flex;
    gap: 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 30px;
}

.modal-metric {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.modal-metric-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.modal-metric-val {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.modal-text-section {
    margin-bottom: 24px;
}

.modal-text-section:last-of-type {
    margin-bottom: 0;
}

.modal-sub-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.modal-sub-title i {
    width: 18px;
    height: 18px;
    color: var(--accent-solid);
}

.modal-text-section p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-footer {
    margin-top: 36px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    display: flex;
    justify-content: flex-end;
}

/* ==========================================================================
   RESPONSIVE DESIGN & MOBILE OVERRIDES
   ========================================================================== */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-text-content {
        align-items: center;
    }
    
    .hero-description {
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .github-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-logo p {
        margin: 0 auto;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
        z-index: 1010;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        padding: 100px 40px 40px 40px;
        gap: 24px;
        z-index: 1005;
        transition: right var(--transition-normal);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    }
    
    .nav-links.open {
        right: 0;
    }
    
    .nav-resume {
        display: none; /* Hide resume button in tiny headers */
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 48px;
    }
    
    .timeline-dot {
        left: 16px;
    }
    
    .timeline-dot-glowing {
        left: 13px;
    }
    
    .floating-socials {
        display: none; /* Hide on mobile to declutter screens */
    }
    
    .back-to-top-btn {
        bottom: 20px;
        right: 20px;
    }
    
    .modal-content-container {
        padding: 24px;
    }
    
    .modal-card {
        max-height: 90vh;
    }
    
    .modal-metrics-bar {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-panel {
        padding: 24px;
    }
}

/* ==========================================================================
   ANIMATIONS KEYFRAMES
   ========================================================================== */
@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: scale(0.98); }
    50% { opacity: 1; transform: scale(1.02); }
}

@keyframes fill-loader {
    to { width: 100%; }
}

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

@keyframes shimmer {
    100% { left: 200%; }
}

@keyframes pulse-ring {
    0% { transform: scale(0.95); opacity: 0.5; }
    50% { opacity: 0.3; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ==========================================================================
   PERSONAL META & CERTIFICATIONS STYLES
   ========================================================================== */
.personal-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 20px 0;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.9rem;
}

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

.meta-item span {
    color: var(--text-secondary);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.cert-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cert-card:hover {
    border-color: var(--accent-solid);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.cert-badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-solid);
    flex-shrink: 0;
}

.cert-badge-icon i {
    width: 20px;
    height: 20px;
}

.cert-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cert-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.cert-issuer {
    font-size: 0.8rem;
    color: var(--text-secondary);
}