/* Modern CSS for Libardo Ramirez Portfolio */

:root {
    /* Enhanced Color Palette */
    --primary-color: #0f172a; /* Deep slate */
    --primary-light: #1e293b;
    --primary-dark: #020617;
    --secondary-color: #3b82f6; /* Modern blue */
    --secondary-light: #60a5fa;
    --secondary-dark: #1d4ed8;
    --accent-color: #06b6d4; /* Cyan accent */
    --accent-light: #22d3ee;
    --accent-dark: #0891b2;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;

    /* Neutral Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-light: #94a3b8;
    --text-inverse: #f8fafc;

    /* Background Colors */
    --background: #ffffff;
    --background-secondary: #f8fafc;
    --background-tertiary: #f1f5f9;
    --background-dark: #0f172a;
    --background-darker: #020617;

    /* Surface Colors */
    --surface: #ffffff;
    --surface-secondary: #f8fafc;
    --surface-tertiary: #f1f5f9;
    --surface-hover: #e2e8f0;

    /* Border Colors */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #cbd5e1;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;

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

    /* Font Weights */
    --font-thin: 100;
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: clamp(3rem, 6vw, 4rem) 0;
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    --border-radius-2xl: 2rem;
    --border-radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--background) 0%, var(--background-secondary) 100%);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Skip Links */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-inverse);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: var(--font-medium);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background-color: var(--secondary-color);
    color: var(--text-inverse);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.navbar.scrolled .nav-logo a {
    color: var(--text-primary);
}

.navbar.scrolled .hamburger-line {
    background: var(--text-primary);
}

.navbar.scrolled .nav-link {
    color: var(--text-secondary);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link:focus,
.navbar.scrolled .nav-link.active {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo a {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-inverse);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    display: none;
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

.logo-initials {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--text-2xl);
    font-weight: var(--font-extrabold);
    letter-spacing: -0.02em;
}

.nav-logo a:hover .logo-initials {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
    color: var(--text-inverse);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link:hover::before,
.nav-link:focus::before,
.nav-link.active::before {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    background: transparent;
    border: none;
}

.hamburger:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

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

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--background);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 3rem;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
    padding: 6rem 0 4rem;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
    background-image:
        radial-gradient(circle at 25% 25%, var(--text-inverse) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--text-inverse) 2px, transparent 2px);
    background-size: 50px 50px;
    background-position: 0 0, 25px 25px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    min-height: auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-full);
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-inverse);
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-greeting {
    display: block;
    font-size: var(--text-xl);
    font-weight: var(--font-medium);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.hero-name {
    display: block;
    font-size: clamp(var(--text-4xl), 7vw, var(--text-6xl));
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    margin-bottom: 0.25rem;
    background: linear-gradient(135deg, var(--text-inverse) 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    display: block;
    font-size: clamp(var(--text-xl), 4vw, var(--text-3xl));
    font-weight: var(--font-medium);
    color: var(--accent-light);
    opacity: 0.9;
}

.hero-description {
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description p {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.hero-description p:last-child {
    margin-bottom: 0;
}

.hero-description strong {
    color: var(--text-inverse);
    font-weight: var(--font-semibold);
}

.hero-highlights {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    justify-content: center;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 0.75rem 1.5rem;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
}

.highlight-item i {
    color: var(--accent-color);
    font-size: 1rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}



.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::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 var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: var(--text-inverse);
    border-color: var(--secondary-color);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-color));
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}



/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(var(--text-4xl), 5vw, var(--text-5xl));
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-full);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

/* Experience Section */
.experience {
    background: var(--background-secondary);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.experience-card {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.experience-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--border-dark);
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.card-icon i {
    font-size: 1.75rem;
    color: var(--text-inverse);
}

.card-meta {
    flex: 1;
}

.card-category {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.card-content h3,
.card-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: var(--leading-tight);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: var(--leading-relaxed);
}

.card-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.card-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.card-features li i {
    color: var(--success-color);
    font-size: 1.1rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.experience-cta {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-2xl);
    border: 1px solid var(--glass-border);
}

.cta-text {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Projects Section */
.projects {
    background: var(--background);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.project-card {
    background: var(--surface);
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    group: true;
}

.project-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--secondary-color);
}

.project-image {
    position: relative;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--background-secondary) 0%, var(--background-tertiary) 100%);
}

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

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

.project-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border: 1px solid var(--glass-border);
}

.project-content {
    padding: 2.5rem;
}

.project-header {
    margin-bottom: 1.5rem;
}

.project-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: var(--leading-tight);
}

.project-subtitle {
    font-size: var(--text-base);
    color: var(--secondary-color);
    font-weight: var(--font-medium);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: var(--leading-relaxed);
    font-size: var(--text-base);
}

.project-features {
    list-style: none;
    margin-bottom: 2.5rem;
}

.project-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.project-features li i {
    color: var(--success-color);
    margin-top: 0.125rem;
    flex-shrink: 0;
}

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

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--text-inverse);
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.project-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
}

.project-link.primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
}

.project-link.primary:hover {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-color));
}

.projects-cta {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: linear-gradient(135deg, var(--background-secondary), var(--background-tertiary));
    border-radius: var(--border-radius-2xl);
    border: 1px solid var(--border-light);
}

.projects-cta .cta-text {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Contact Section */
.contact {
    background: var(--background-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-primary {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

.contact-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.contact-icon i {
    font-size: 1.75rem;
    color: var(--text-inverse);
}

.contact-details h3,
.contact-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: var(--leading-relaxed);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.contact-link.primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--text-inverse);
}

.contact-link.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
}

.contact-link.secondary {
    background: var(--success-color);
    color: var(--text-inverse);
}

.contact-link.secondary:hover {
    background: var(--success-color);
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-secondary {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.social-section {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.social-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.social-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: var(--leading-relaxed);
}

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

.social-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--surface-secondary);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-light);
}

.social-card:hover {
    background: var(--surface-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--secondary-color);
}

.social-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.social-icon i {
    font-size: 1.25rem;
    color: var(--text-inverse);
}

.social-content {
    flex: 1;
}

.social-name {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.social-handle {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}



.contact-footer {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--glass-border);
}

.contact-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.contact-badge i {
    color: var(--success-color);
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: var(--text-inverse);
    border-top: 1px solid var(--border-dark);
}

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-inverse);
}

.footer-tagline {
    color: var(--text-light);
    font-size: var(--text-sm);
    margin: 0;
    padding-left: 1rem;
    border-left: 1px solid var(--border-dark);
}

.footer-nav {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: var(--text-tertiary);
    font-size: var(--text-xs);
}

.footer-ai-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    transition: all var(--transition-fast);
}

@media (max-width: 1024px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1rem;
    }
    
    .footer-brand {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer-tagline {
        border-left: none;
        padding-left: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 0;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .logo-text {
        display: inline;
    }

    .logo-initials {
        display: none;
    }

    .hero-content {
        padding: 0 1rem;
    }

    .hero-name {
        font-size: clamp(var(--text-4xl), 12vw, var(--text-6xl));
    }

    .hero-highlights {
        flex-direction: column;
        gap: 0.75rem;
    }

    .highlight-item {
        justify-content: center;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .tech-icons {
        flex-wrap: wrap;
        justify-content: center;
    }

    .experience-grid,
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .social-grid {
        gap: 0.75rem;
    }

    .footer-content {
        padding: 2rem 1rem;
    }

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

@media (max-width: 640px) {
    .hero-description p {
        font-size: var(--text-base);
    }



    .experience-card,
    .project-content,
    .contact-card,
    .social-section {
        padding: 2rem;
    }

    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .project-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .project-link {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-image-container {
        width: 250px;
        height: 250px;
    }

    .floating-element {
        width: 40px;
        height: 40px;
    }

    .section-title {
        font-size: clamp(var(--text-3xl), 8vw, var(--text-4xl));
    }

    .contact-primary {
        gap: 1.5rem;
    }

    .social-card {
        padding: 1rem;
    }

    .social-icon {
        width: 40px;
        height: 40px;
    }

    .footer-links {
        align-items: center;
    }
}

/* Animation classes for JavaScript */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scrolling behavior */
html {
    scroll-padding-top: 80px;
}

/* Focus styles for accessibility */
.nav-link:focus,
.btn:focus,
.social-link:focus,
.email-link:focus,
.project-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}