/* Notion-Style Design System */
:root {
    /* Subtle Grey Gradient Colors */
    --bg-primary: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    --bg-secondary: linear-gradient(135deg, #f1f3f4 0%, #e8eaed 50%, #dadce0 100%);
    --bg-card: rgba(255, 255, 255, 0.98);
    --bg-hover: rgba(255, 255, 255, 1);
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #80868b;

    /* Subtle Grey Accent Colors */
    --accent-primary: linear-gradient(135deg, #5f6368 0%, #3c4043 100%);
    --accent-primary-light: rgba(95, 99, 104, 0.08);
    --accent-secondary: linear-gradient(135deg, #9aa0a6 0%, #80868b 100%);
    --accent-secondary-light: rgba(154, 160, 166, 0.08);
    --accent-success: linear-gradient(135deg, #dadce0 0%, #bdc1c6 100%);
    --accent-success-light: rgba(218, 220, 224, 0.08);
    --accent-warning: linear-gradient(135deg, #e8eaed 0%, #dadce0 100%);
    --accent-warning-light: rgba(232, 234, 237, 0.08);

    /* Subtle Grey Borders */
    --border-light: rgba(128, 134, 139, 0.2);
    --border-medium: rgba(128, 134, 139, 0.3);
    --border-dark: rgba(128, 134, 139, 0.4);

    /* Subtle Grey Backgrounds */
    --bg-subtle-blue: linear-gradient(135deg, rgba(95, 99, 104, 0.05) 0%, rgba(60, 64, 67, 0.05) 100%);
    --bg-subtle-purple: linear-gradient(135deg, rgba(154, 160, 166, 0.05) 0%, rgba(128, 134, 139, 0.05) 100%);
    --bg-subtle-green: linear-gradient(135deg, rgba(218, 220, 224, 0.05) 0%, rgba(189, 193, 198, 0.05) 100%);
    --bg-subtle-orange: linear-gradient(135deg, rgba(232, 234, 237, 0.05) 0%, rgba(218, 220, 224, 0.05) 100%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    
    /* Modern Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-heading: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-family-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "PT Mono", "Liberation Mono", Courier, monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 0.9375rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.125rem;
    --font-size-2xl: 1.25rem;
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-secondary);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-2xl);
    display: grid;
    grid-template-columns: 1fr 320px;
    grid-template-rows: auto auto 1fr auto;
    gap: var(--space-2xl);
    min-height: 100vh;
    grid-template-areas:
        "profile social"
        "projects-header projects-header"
        "projects projects"
        "contact contact";
}

/* Hero Section */
.hero-section {
    grid-area: hero;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2xl) 0 var(--space-2xl) 0;
    min-height: 70vh;
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
}

.hero-title {
    font-family: var(--font-family-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    background: linear-gradient(135deg, #202124 0%, #5f6368 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease forwards;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.6;
    animation: fadeInUp 1s ease forwards 0.2s both;
}

.hero-cta {
    display: flex;
    gap: var(--space-lg);
    animation: fadeInUp 1s ease forwards 0.4s both;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-lg);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #5f6368 0%, #3c4043 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(95, 99, 104, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(95, 99, 104, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-medium);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.hero-visual {
    flex: 1;
    position: relative;
    height: 400px;
    z-index: 1;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(95, 99, 104, 0.1) 0%, rgba(60, 64, 67, 0.1) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 120px;
    height: 120px;
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.shape-2 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 60%;
    animation-delay: 4s;
}

/* Profile Card */
.profile-card {
    grid-area: profile;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-2xl) var(--space-2xl) var(--space-2xl) var(--space-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #5f6368, #3c4043, #9aa0a6, #80868b);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.profile-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--border-medium);
}

.profile-avatar {
    margin: 0 auto var(--space-lg);
    width: 120px;
    height: 120px;
    position: relative;
}

.avatar-circle {
    width: 100%;
    height: 100%;
    background: var(--bg-subtle-blue);
    border-radius: 50%;
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.profile-image.loaded {
    opacity: 1;
}

.profile-name {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    background: linear-gradient(135deg, #202124 0%, #3c4043 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-title {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-weight: 400;
}

.profile-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--accent-success-light);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--accent-success);
}

.status-icon {
    font-size: var(--font-size-sm);
}

.status-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--accent-success);
}

/* Social Links */
.social-links {
    grid-area: social;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.social-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-base);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.social-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.social-card:hover::before {
    left: 100%;
}

.social-card:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.github:hover {
    background: var(--bg-subtle-purple);
    border-color: var(--accent-secondary);
}

.linkedin:hover {
    background: var(--bg-subtle-blue);
    border-color: var(--accent-primary);
}

.twitter:hover {
    background: var(--bg-hover);
    border-color: var(--border-dark);
}

.social-icon {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.social-card:hover .social-icon {
    color: var(--text-primary);
}

.social-content {
    flex: 1;
}

.social-platform {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: 2px;
}

.social-meta {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.social-arrow {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.social-card:hover .social-arrow {
    color: var(--text-primary);
    transform: translate(2px, -2px);
}

/* Stats Card */
.stats-card {
    grid-area: stats;
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.stats-title,
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
    text-align: center;
}

.projects-section {
    grid-area: projects-header;
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    text-align: center;
    margin-top: var(--space-sm);
    font-style: italic;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

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

.stat-icon {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
    display: block;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 400;
}

/* Featured Project */
.featured-project {
    grid-area: featured;
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.featured-project:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--border-medium);
}

.project-header {
    margin-bottom: var(--space-xl);
}

.project-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, #202124 0%, #5f6368 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.card-features {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.feature-tag {
    background: linear-gradient(135deg, var(--bg-subtle) 0%, var(--bg-card) 100%);
    color: var(--text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.feature-tag:hover {
    background: var(--accent-primary-light);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.project-actions {
    display: flex;
    gap: var(--space-md);
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    border: 1px solid var(--border-light);
}

.btn-action:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
    transform: translateY(-1px);
}

.price-tag {
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    margin-left: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-tag.free {
    background: #10b981;
    color: white;
}

.price-tag.paid {
    background: #f59e0b;
    color: white;
}

.price-tag.contact {
    background: #6b7280;
    color: white;
}

.btn-live:hover {
    background: var(--accent-success-light);
    border-color: var(--accent-success);
    color: var(--accent-success);
}

.btn-code:hover {
    background: var(--accent-secondary-light);
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
}

.btn-icon {
    font-size: var(--font-size-base);
}

/* Projects Grid */
.projects-grid {
    grid-area: projects;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.project-card {
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.project-beta {
    border-left: 3px solid #bdc1c6;
}

.project-gamma {
    border-left: 3px solid #dadce0;
}

.project-delta {
    border-left: 3px solid #10b981;
}

.project-epsilon {
    border-left: 3px solid #f59e0b;
}

.project-zeta {
    border-left: 3px solid #059669;
}

.project-eta {
    border-left: 3px solid #8b5cf6;
}

.project-theta {
    border-left: 3px solid #0ea5e9;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--border-medium);
}

.project-image {
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-subtle);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: transform var(--transition-base);
    background: var(--bg-subtle);
}

.project-card:hover .card-img {
    transform: scale(1.05);
}

.project-content {
    margin-bottom: var(--space-xl);
}

.card-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.card-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.card-tech {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.card-actions {
    display: flex;
    gap: var(--space-md);
}

/* Contact Card */
.contact-card {
    grid-area: contact;
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-lg);
    display: block;
}

.contact-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    background: linear-gradient(135deg, #202124 0%, #3c4043 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, #5f6368 0%, #3c4043 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    margin-bottom: var(--space-lg);
    box-shadow: 0 2px 8px rgba(95, 99, 104, 0.2);
}

.contact-button:hover {
    background: linear-gradient(135deg, #3c4043 0%, #202124 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(95, 99, 104, 0.3);
}

.contact-meta {
    margin-top: var(--space-lg);
}

.response-time {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes modernRipple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.container > * {
    animation: fadeInUp 0.6s ease forwards;
}

.container > *:nth-child(1) { animation-delay: 0.1s; }
.container > *:nth-child(2) { animation-delay: 0.2s; }
.container > *:nth-child(3) { animation-delay: 0.3s; }
.container > *:nth-child(4) { animation-delay: 0.4s; }
.container > *:nth-child(5) { animation-delay: 0.5s; }
.container > *:nth-child(6) { animation-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "profile"
            "social"
            "projects-header"
            "projects"
            "contact";
    }
    
    .social-links {
        flex-direction: row;
        overflow-x: auto;
        gap: var(--space-lg);
        padding-bottom: var(--space-sm);
    }
    
    .social-card {
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--space-lg);
        gap: var(--space-lg);
    }
    
    .profile-card {
        padding: var(--space-xl);
    }
    
    .profile-name {
        font-size: var(--font-size-3xl);
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .social-links {
        flex-direction: column;
    }
    
    .project-actions,
    .card-actions {
        flex-direction: column;
    }
    
    .btn-action {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--space-md);
        gap: var(--space-md);
    }
    
    .profile-card,
    .stats-card,
    .featured-project,
    .project-card,
    .contact-card {
        padding: var(--space-lg);
    }
    
    .profile-name {
        font-size: var(--font-size-2xl);
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm);
    }
    
    .stat-number {
        font-size: var(--font-size-xl);
    }
    
    .project-title,
    .card-title {
        font-size: var(--font-size-xl);
    }
    
    .contact-title {
        font-size: var(--font-size-2xl);
    }
}

/* Dark mode optimizations */
@media (prefers-color-scheme: dark) {
    /* Already optimized for dark mode */
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .social-card,
    .contact-card {
        border: 2px solid var(--text-primary);
    }
}