/* Minimalistic Black & White Portfolio */

/* Modern Typography System */
:root {
    /* Pure Black & White Palette */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-thin: 100;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    --spacing-32: 8rem;

    /* Layout */
    --max-width-xs: 20rem;
    --max-width-sm: 24rem;
    --max-width-md: 28rem;
    --max-width-lg: 32rem;
    --max-width-xl: 36rem;
    --max-width-2xl: 42rem;
    --max-width-3xl: 48rem;
    --max-width-4xl: 56rem;
    --max-width-5xl: 64rem;
    --max-width-6xl: 72rem;
    --max-width-7xl: 80rem;
    --max-width-full: 100%;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-out;
    --transition-normal: 250ms ease-out;
    --transition-slow: 350ms ease-out;

    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
}

/* Dark Theme Variables */
body.dark-mode {
    --color-black: #ffffff;
    --color-white: #000000;
    --color-gray-50: #1a1a1a;
    --color-gray-100: #2a2a2a;
    --color-gray-200: #404040;
    --color-gray-300: #666666;
    --color-gray-400: #999999;
    --color-gray-500: #cccccc;
    --color-gray-600: #e0e0e0;
    --color-gray-700: #f0f0f0;
    --color-gray-800: #f5f5f5;
    --color-gray-900: #fafafa;
}

/* Dark Theme Specific Overrides */
body.dark-mode {
    background-color: var(--color-white);
    color: var(--color-black);
}

body.dark-mode .navbar {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .hero-section {
    background-color: var(--color-white);
}

body.dark-mode .project-card {
    background-color: var(--color-white);
    border-color: var(--color-gray-200);
}

body.dark-mode .project-card:hover {
    border-color: var(--color-black);
}

body.dark-mode .skill-tag {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-200);
    color: var(--color-gray-700);
}

body.dark-mode .skill-tag:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

body.dark-mode .footer {
    background-color: var(--color-gray-100);
    border-top: 1px solid var(--color-gray-200);
}

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

html {
    scroll-behavior: smooth;
    font-feature-settings: "rlig" 1, "calt" 1;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--max-width-7xl);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

.section {
    padding: var(--spacing-24) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--spacing-32) 0;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--color-gray-200);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 100;
    transition: var(--transition-normal);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

body.dark-mode .navbar {
    background-color: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--spacing-20);
    max-width: var(--max-width-7xl);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    position: relative;
}

@media (min-width: 640px) {
    .nav-container {
        padding: 0 var(--spacing-6);
        height: var(--spacing-20);
    }
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    position: relative;
}

.nav-brand::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10px;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, var(--color-black), var(--color-gray-600));
    border-radius: 2px;
    opacity: 0.8;
}

.nav-brand h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-black);
    letter-spacing: -0.03em;
    color: var(--color-black);
    margin: 0;
    position: relative;
    z-index: 1;
}

body.dark-mode .nav-brand h1 {
    color: var(--color-black);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-10);
    position: relative;
}

.nav-link {
    position: relative;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-normal);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: var(--spacing-2) var(--spacing-1);
    border-radius: var(--radius-md);
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-black), var(--color-gray-600));
    border-radius: inherit;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: var(--transition-normal);
    z-index: -1;
    opacity: 0.1;
}

.nav-link:hover::before,
.nav-link.active::before {
    transform: scaleY(1);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-black);
    transform: translateY(-1px);
}

body.dark-mode .nav-link {
    color: var(--color-gray-700);
}

body.dark-mode .nav-link:hover,
body.dark-mode .nav-link.active {
    color: var(--color-black);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--spacing-12);
    height: var(--spacing-12);
    background-color: transparent;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

body.dark-mode .theme-toggle {
    border-color: var(--color-gray-400);
    color: var(--color-gray-700);
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-black), var(--color-gray-600));
    border-radius: inherit;
    transform: scale(0);
    transition: var(--transition-normal);
}

.theme-toggle:hover::before {
    transform: scale(1);
}

.theme-toggle:hover {
    border-color: var(--color-black);
    color: var(--color-white);
    transform: rotate(180deg) scale(1.05);
    box-shadow: var(--shadow-md);
}

body.dark-mode .theme-toggle {
    border-color: var(--color-gray-600);
    color: var(--color-gray-300);
}

body.dark-mode .theme-toggle:hover {
    border-color: var(--color-white);
    color: var(--color-black);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 3px;
    width: var(--spacing-8);
    height: var(--spacing-8);
    background: transparent;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: var(--spacing-2);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mobile-menu-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-black), var(--color-gray-600));
    border-radius: inherit;
    transform: scale(0);
    transition: var(--transition-normal);
}

.mobile-menu-toggle:hover::before {
    transform: scale(1);
}

.mobile-menu-toggle:hover {
    border-color: var(--color-black);
    transform: scale(1.05);
}

.mobile-menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition-normal);
    border-radius: 1px;
    position: relative;
    z-index: 1;
}

body.dark-mode .mobile-menu-toggle {
    border-color: var(--color-gray-600);
}

body.dark-mode .mobile-menu-toggle span {
    background-color: var(--color-white);
}

body.dark-mode .mobile-menu-toggle:hover {
    border-color: var(--color-white);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-white);
    position: relative;
    padding-top: var(--spacing-24);
}

.hero-container {
    max-width: var(--max-width-4xl);
    margin: 0 auto;
    padding: var(--spacing-16) var(--spacing-4) 0;
}

@media (min-width: 640px) {
    .hero-container {
        padding: 0 var(--spacing-6);
    }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-24);
    }
}

.hero-content {
    order: 2;
}

@media (min-width: 1024px) {
    .hero-content {
        order: 1;
    }
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-7xl));
    font-weight: var(--font-weight-black);
    line-height: 1;
    letter-spacing: -0.05em;
    margin-bottom: var(--spacing-6);
    color: var(--color-black);
}

.hero-title .highlight {
    position: relative;
    color: var(--color-black);
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--color-black);
    opacity: 0.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-light);
    line-height: 1.4;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
    max-width: var(--max-width-2xl);
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-10);
    max-width: var(--max-width-xl);
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: flex-start;
}

@media (min-width: 640px) {
    .hero-actions {
        flex-direction: row;
        gap: var(--spacing-6);
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    border: 1px solid var(--color-gray-300);
    background-color: transparent;
    color: var(--color-black);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--color-black);
    transition: var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--color-white);
    border-color: var(--color-black);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.btn-primary::before {
    background-color: var(--color-white);
}

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

.hero-visual {
    order: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-visual {
        order: 2;
    }
}

.profile-container {
    position: relative;
    width: 280px;
    height: 280px;
}

@media (min-width: 640px) {
    .profile-container {
        width: 320px;
        height: 320px;
    }
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
    object-position: center 35%;
    border: 3px solid var(--color-gray-200);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.profile-image:hover {
    border-color: var(--color-black);
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background-color: var(--color-gray-100);
    border: 2px solid var(--color-gray-200);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.profile-placeholder:hover {
    border-color: var(--color-black);
    transform: scale(1.02);
}

.profile-placeholder i {
    font-size: 4rem;
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-4);
}

.placeholder-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-medium);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-16);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--color-gray-200);
}

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

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-2);
    display: block;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-medium);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
    position: relative;
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: var(--font-weight-black);
    letter-spacing: -0.05em;
    color: var(--color-black);
    margin-bottom: var(--spacing-6);
    position: relative;
    display: inline-block;
    line-height: 1.1;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-black), var(--color-gray-600));
    border-radius: 2px;
    opacity: 0.8;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-light);
    color: var(--color-gray-600);
    max-width: var(--max-width-2xl);
    margin: 0 auto;
    line-height: 1.5;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-16);
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 2fr 1fr;
        gap: var(--spacing-24);
    }
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--color-gray-700);
    font-weight: var(--font-weight-light);
}

.about-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .about-details {
        grid-template-columns: repeat(2, 1fr);
    }
}

.detail-item {
    padding: var(--spacing-6);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    background-color: var(--color-white);
    transition: var(--transition-normal);
}

.detail-item:hover {
    border-color: var(--color-black);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.detail-item h4 {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-2);
}

.detail-item p {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-black);
}

/* Work Section */
.skills-overview {
    margin-bottom: var(--spacing-12);
}

.subsection-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
    margin-bottom: var(--spacing-6);
    letter-spacing: -0.025em;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
}

.skill-tag {
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.skill-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
    transition: left 0.5s;
}

.skill-tag:hover::before {
    left: 100%;
}

.skill-tag:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    margin-top: var(--spacing-8);
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-12);
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-10);
    }
}

.project-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-black);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
    z-index: 1;
    border-radius: inherit;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    border-color: var(--color-black);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.project-card > * {
    position: relative;
    z-index: 2;
    transition: var(--transition-normal);
}

/* Improved hover color changes with higher specificity */
.project-card:hover .project-header h4 {
    color: var(--color-white);
}

.project-card:hover .project-description {
    color: var(--color-white);
}

.project-card:hover .project-tech span {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.project-card:hover .project-link {
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.project-card:hover .project-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-4);
}

.project-header h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
    letter-spacing: -0.025em;
    line-height: 1.3;
    transition: var(--transition-normal);
}

.project-type {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    background-color: var(--color-gray-100);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-medium);
    border: 1px solid var(--color-gray-200);
}

.project-description {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-6);
    transition: var(--transition-normal);
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-sm);
}

.project-date,
.project-team,
.project-mentor {
    color: var(--color-gray-600);
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
    font-weight: var(--font-weight-medium);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.project-tech span {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    background-color: var(--color-gray-50);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-normal);
}

.project-links {
    display: flex;
    gap: var(--spacing-4);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-normal);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    background-color: transparent;
}

.project-link:hover {
    color: var(--color-white);
    border-color: var(--color-black);
    background-color: var(--color-black);
    transform: translateX(4px);
}

/* Contact Section */
.contact-content {
    max-width: var(--max-width-2xl);
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    transition: var(--transition-normal);
}

body.dark-mode .contact-item {
    background-color: var(--color-gray-900);
    border-color: var(--color-gray-700);
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gray-300);
}

body.dark-mode .contact-item:hover {
    border-color: var(--color-gray-600);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    flex-shrink: 0;
    transition: var(--transition-normal);
}

body.dark-mode .contact-icon {
    background-color: var(--color-gray-800);
    color: var(--color-gray-400);
}

.contact-item:hover .contact-icon {
    background-color: var(--color-black);
    color: var(--color-white);
}

body.dark-mode .contact-item:hover .contact-icon {
    background-color: var(--color-white);
    color: var(--color-black);
}

.contact-details h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-1);
}

body.dark-mode .contact-details h4 {
    color: var(--color-gray-100);
}

.contact-details p {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin: 0;
}

body.dark-mode .contact-details p {
    color: var(--color-gray-400);
}

.contact-link {
    color: var(--color-gray-900);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
}

body.dark-mode .contact-link {
    color: var(--color-gray-100);
}

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

body.dark-mode .contact-link:hover {
    color: var(--color-white);
}

.contact-actions {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
    flex-wrap: wrap;
}

.contact-actions .btn {
    padding: var(--spacing-4) var(--spacing-8);
    border-radius: var(--radius-lg);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    transition: var(--transition-normal);
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-black);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-gray-900);
    border: 1px solid var(--color-gray-300);
}

.btn-outline:hover {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    border-color: var(--color-gray-900);
}

body.dark-mode .btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

body.dark-mode .btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

body.dark-mode .btn-outline {
    color: var(--color-gray-900);
    border-color: var(--color-gray-300);
}

body.dark-mode .btn-outline:hover {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    border-color: var(--color-gray-900);
}

/* Responsive Design for Contact */
@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

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

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

/* Footer */
.footer {
    background-color: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-200);
    padding: var(--spacing-16) 0;
}

body.dark-mode .footer {
    background-color: var(--color-gray-100);
    border-top-color: var(--color-gray-300);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-6);
}

.footer-brand h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--spacing-1);
}

body.dark-mode .footer-brand h3 {
    color: var(--color-white);
}

.footer-brand p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

body.dark-mode .footer-brand p {
    color: var(--color-gray-400);
}

.footer-nav {
    display: flex;
    gap: var(--spacing-8);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--color-gray-600);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-normal);
}

body.dark-mode .footer-link {
    color: var(--color-gray-400);
}

.footer-link:hover {
    color: var(--color-black);
}

body.dark-mode .footer-link:hover {
    color: var(--color-white);
}

.footer-social {
    display: flex;
    gap: var(--spacing-4);
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-normal);
}

body.dark-mode .social-link {
    background-color: var(--color-white);
    border-color: var(--color-gray-300);
    color: var(--color-gray-600);
}

.social-link:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
    transform: translateY(-2px);
}

body.dark-mode .social-link:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.footer-bottom {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--color-gray-200);
    text-align: center;
}

body.dark-mode .footer-bottom {
    border-top-color: var(--color-gray-300);
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

body.dark-mode .footer-bottom p {
    color: var(--color-gray-600);
}

/* Responsive Design for Footer */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-8);
    }

    .footer-nav {
        justify-content: center;
    }

    .footer-social {
        justify-content: center;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--spacing-16);
        left: 0;
        right: 0;
        background-color: var(--color-white);
        border-top: 1px solid var(--color-gray-200);
        border-bottom: 1px solid var(--color-gray-200);
        flex-direction: column;
        padding: var(--spacing-6);
        gap: var(--spacing-4);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu.active {
        z-index: 1000;
    }

    .nav-menu .nav-link {
        font-size: var(--font-size-base);
        padding: var(--spacing-3);
        justify-content: center;
        text-align: center;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translateY(6px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(-6px);
    }

    .hero-title {
        font-size: clamp(var(--font-size-3xl), 12vw, var(--font-size-5xl));
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

    .section {
        padding: var(--spacing-16) 0;
    }

    .section-title {
        font-size: clamp(var(--font-size-2xl), 6vw, var(--font-size-4xl));
    }

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

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

    .profile-container {
        width: 240px;
        height: 240px;
    }

    .profile-image {
        object-position: center 40%;
    }
}

@media (max-width: 640px) {
    .hero-actions {
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }

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

    .profile-image {
        object-position: center 45%;
    }
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles */
@media print {
    .navbar,
    .theme-toggle,
    .mobile-menu-toggle,
    .hero-visual {
        display: none !important;
    }

    body {
        background-color: white !important;
        color: black !important;
    }

    .section {
        padding: 2rem 0 !important;
    }
}