/* ===================================
   Interactive Resume - Custom Styles
   Version: 1.0
   ================================== */

/* CSS Custom Properties for Theme */
:root {
    /* Accent Colors */
    --accent-blue: #0066FF;
    --accent-green: #00D98B;
    --accent-gold: #FFB800;
    --accent-coral: #FF6B6B;

    /* Active Accent (can be changed via JS) */
    --accent-primary: var(--accent-blue);
    --accent-secondary: var(--accent-green);

    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-border-hover: rgba(255, 255, 255, 0.25);

    /* Shadows */
    --shadow-sm: 0 0 10px rgba(0, 102, 255, 0.3);
    --shadow-md: 0 0 20px rgba(0, 102, 255, 0.4);
    --shadow-lg: 0 0 30px rgba(0, 102, 255, 0.5);
    --shadow-xl: 0 0 40px rgba(0, 102, 255, 0.6);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --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;

    /* Animation Timings */
    --transition-fast: 0.15s;
    --transition-base: 0.3s;
    --transition-slow: 0.5s;
    --transition-slower: 0.8s;
}

/* Theme Variations */
[data-theme="blue"] {
    --accent-primary: var(--accent-blue);
    --shadow-sm: 0 0 10px rgba(0, 102, 255, 0.3);
    --shadow-md: 0 0 20px rgba(0, 102, 255, 0.4);
    --shadow-lg: 0 0 30px rgba(0, 102, 255, 0.5);
    --shadow-xl: 0 0 40px rgba(0, 102, 255, 0.6);
}

[data-theme="green"] {
    --accent-primary: var(--accent-green);
    --shadow-sm: 0 0 10px rgba(0, 217, 139, 0.3);
    --shadow-md: 0 0 20px rgba(0, 217, 139, 0.4);
    --shadow-lg: 0 0 30px rgba(0, 217, 139, 0.5);
    --shadow-xl: 0 0 40px rgba(0, 217, 139, 0.6);
}

[data-theme="gold"] {
    --accent-primary: var(--accent-gold);
    --shadow-sm: 0 0 10px rgba(255, 184, 0, 0.3);
    --shadow-md: 0 0 20px rgba(255, 184, 0, 0.4);
    --shadow-lg: 0 0 30px rgba(255, 184, 0, 0.5);
    --shadow-xl: 0 0 40px rgba(255, 184, 0, 0.6);
}

[data-theme="coral"] {
    --accent-primary: var(--accent-coral);
    --shadow-sm: 0 0 10px rgba(255, 107, 107, 0.3);
    --shadow-md: 0 0 20px rgba(255, 107, 107, 0.4);
    --shadow-lg: 0 0 30px rgba(255, 107, 107, 0.5);
    --shadow-xl: 0 0 40px rgba(255, 107, 107, 0.6);
}

/* Override Tailwind accent colors with dynamic theme variable */
.text-accent-blue,
.text-accent-green,
.text-accent-gold,
.text-accent-coral {
    color: var(--accent-primary) !important;
}

.bg-accent-blue,
.bg-accent-green,
.bg-accent-gold,
.bg-accent-coral {
    background-color: var(--accent-primary) !important;
}

.border-accent-blue,
.border-accent-green,
.border-accent-gold,
.border-accent-coral {
    border-color: var(--accent-primary) !important;
}

.hover\:text-accent-blue:hover,
.hover\:text-accent-green:hover,
.hover\:text-accent-gold:hover,
.hover\:text-accent-coral:hover {
    color: var(--accent-primary) !important;
}

.hover\:bg-accent-blue:hover,
.hover\:bg-accent-green:hover,
.hover\:bg-accent-gold:hover,
.hover\:bg-accent-coral:hover {
    background-color: var(--accent-primary) !important;
}

.hover\:bg-accent-blue\/80:hover,
.hover\:bg-accent-green\/80:hover,
.hover\:bg-accent-gold\/80:hover,
.hover\:bg-accent-coral\/80:hover {
    background-color: var(--accent-primary) !important;
    opacity: 0.8;
}

.shadow-accent-blue,
.shadow-accent-green,
.shadow-accent-gold,
.shadow-accent-coral {
    --tw-shadow-color: var(--accent-primary) !important;
}

.shadow-accent-blue\/50,
.shadow-accent-green\/50,
.shadow-accent-gold\/50,
.shadow-accent-coral\/50 {
    --tw-shadow-color: var(--accent-primary) !important;
}

.hover\:shadow-accent-blue\/50:hover,
.hover\:shadow-accent-green\/50:hover,
.hover\:shadow-accent-gold\/50:hover,
.hover\:shadow-accent-coral\/50:hover {
    --tw-shadow-color: var(--accent-primary) !important;
}

/* Transparent background variants for skill badges */
.bg-accent-blue\/20,
.bg-accent-green\/20,
.bg-accent-gold\/20,
.bg-accent-coral\/20 {
    background-color: color-mix(in srgb, var(--accent-primary) 20%, transparent) !important;
}

/* Fallback for browsers that don't support color-mix */
@supports not (background-color: color-mix(in srgb, var(--accent-primary) 20%, transparent)) {
    .bg-accent-blue\/20,
    .bg-accent-green\/20,
    .bg-accent-gold\/20,
    .bg-accent-coral\/20 {
        background-color: var(--accent-primary) !important;
        opacity: 0.2;
    }
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 2rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background-color: #000;
    color: #fff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Light Mode */
body[data-mode="light"] {
    background-color: #f5f5f5;
    color: #1a1a1a;
}

body[data-mode="light"] .glass-card {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 0, 0, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

body[data-mode="light"] .glass-card-hover:hover {
    background: rgba(255, 255, 255, 1);
    border-color: rgba(0, 0, 0, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

body[data-mode="light"] nav .glass-card {
    background: rgba(255, 255, 255, 0.95);
}

body[data-mode="light"] .scroll-progress-bar {
    box-shadow: 0 0 10px var(--accent-primary);
}

body[data-mode="light"] .timeline-line {
    background: linear-gradient(180deg,
        transparent,
        var(--accent-primary) 10%,
        var(--accent-primary) 90%,
        transparent
    );
}

body[data-mode="light"] .timeline-dot,
body[data-mode="light"] .timeline-dot-large {
    border-color: #f5f5f5;
}

/* Light mode text colors */
body[data-mode="light"] h1,
body[data-mode="light"] h2,
body[data-mode="light"] h3,
body[data-mode="light"] h4,
body[data-mode="light"] h5,
body[data-mode="light"] h6 {
    color: #1a1a1a;
}

body[data-mode="light"] p,
body[data-mode="light"] span,
body[data-mode="light"] time {
    color: #1a1a1a;
}

body[data-mode="light"] a {
    color: #1a1a1a;
}

body[data-mode="light"] .text-white\/80 {
    color: rgba(26, 26, 26, 0.8) !important;
}

body[data-mode="light"] .text-white\/60 {
    color: rgba(26, 26, 26, 0.6) !important;
}

body[data-mode="light"] .text-white\/90 {
    color: rgba(26, 26, 26, 0.9) !important;
}

body[data-mode="light"] .text-white {
    color: #1a1a1a !important;
}

/* Light mode navigation icons */
body[data-mode="light"] nav a {
    color: rgba(26, 26, 26, 0.7);
}

body[data-mode="light"] nav a:hover {
    color: var(--accent-primary);
}

/* Light mode hover states for all links with hover:text-accent-* classes */
body[data-mode="light"] a.hover\:text-accent-blue:hover,
body[data-mode="light"] a.hover\:text-accent-green:hover,
body[data-mode="light"] a.hover\:text-accent-gold:hover,
body[data-mode="light"] a.hover\:text-accent-coral:hover {
    color: var(--accent-primary) !important;
}

body[data-mode="light"] a.hover\:text-accent-blue:hover svg,
body[data-mode="light"] a.hover\:text-accent-green:hover svg,
body[data-mode="light"] a.hover\:text-accent-gold:hover svg,
body[data-mode="light"] a.hover\:text-accent-coral:hover svg {
    color: var(--accent-primary) !important;
}

body[data-mode="light"] a.hover\:text-accent-blue:hover span,
body[data-mode="light"] a.hover\:text-accent-green:hover span,
body[data-mode="light"] a.hover\:text-accent-gold:hover span,
body[data-mode="light"] a.hover\:text-accent-coral:hover span {
    color: var(--accent-primary) !important;
}

/* Active navigation link styling */
nav a.text-accent-blue,
nav a.text-accent-blue svg,
nav a.text-accent-blue span {
    color: var(--accent-primary) !important;
}

/* Light mode buttons */
body[data-mode="light"] .tab-button {
    color: rgba(26, 26, 26, 0.7);
}

body[data-mode="light"] .tab-button[aria-selected="true"] {
    color: #fff;
}

/* Light mode theme menu */
body[data-mode="light"] #themeMenu {
    background: rgba(255, 255, 255, 0.95);
}

body[data-mode="light"] #themeMenu p {
    color: #1a1a1a;
}

body[data-mode="light"] .mode-option,
body[data-mode="light"] .theme-option {
    border-color: rgba(0, 0, 0, 0.1);
}

body[data-mode="light"] .mode-option:hover,
body[data-mode="light"] .theme-option:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 0, 0, 0.02);
}

/* Ensure mode option text is always visible */
body[data-mode="light"] .mode-option p,
body[data-mode="light"] .theme-option p {
    color: #1a1a1a !important;
}

/* Ensure mode icons are visible in light mode */
body[data-mode="light"] .mode-option svg {
    opacity: 1;
}

/* Make sure dark mode preview stays dark in light mode */
body[data-mode="light"] .mode-option[data-mode="dark"] > div {
    background: linear-gradient(to right, #1a1a1a, #000) !important;
}

body[data-mode="light"] .mode-option[data-mode="dark"] svg {
    color: #fff !important;
}

/* Footer links in light mode */
body[data-mode="light"] .footer-link {
    color: var(--accent-primary) !important;
}

/* Active navigation in light mode */
body[data-mode="light"] nav a.text-accent-blue,
body[data-mode="light"] nav a.text-accent-blue svg,
body[data-mode="light"] nav a.text-accent-blue span {
    color: var(--accent-primary) !important;
}

/* Section borders in light mode */
body[data-mode="light"] .border-white\/10 {
    border-color: rgba(0, 0, 0, 0.15) !important;
}

/* Enhanced Glassmorphism Effects */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-card-hover {
    transition: all var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card-hover:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.glass-card-hover:active {
    transform: translateY(-2px);
}

/* Focus States for Accessibility */
.glass-card-hover:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error States */
.error {
    border-color: #ef4444 !important;
    background: rgba(239, 68, 68, 0.1) !important;
}

.error-message {
    color: #ef4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Success States */
.success {
    border-color: #10b981 !important;
    background: rgba(16, 185, 129, 0.1) !important;
}

/* Profile Photo Enhancements */
.profile-photo {
    position: relative;
    display: inline-block;
}

.profile-photo::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        var(--accent-primary),
        var(--accent-secondary),
        var(--accent-primary)
    );
    animation: rotate 8s linear infinite;
    opacity: 0.5;
    filter: blur(20px);
}

.profile-photo img {
    position: relative;
    z-index: 1;
}

@keyframes rotate {
    to { transform: rotate(360deg); }
}

/* Timeline Enhancements */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg,
        transparent,
        var(--accent-primary) 10%,
        var(--accent-primary) 90%,
        transparent
    );
    transform: translateX(-50%);
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border: 3px solid #000;
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--accent-primary);
    position: relative;
    transition: all var(--transition-base) ease;
    cursor: pointer;
    z-index: 10;
}

.timeline-dot-large {
    width: 24px;
    height: 24px;
    background: var(--accent-primary);
    border: 4px solid #000;
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--accent-primary),
                0 0 20px var(--accent-primary);
    position: relative;
    transition: all var(--transition-base) ease;
    cursor: pointer;
    z-index: 10;
}

.timeline-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow) ease,
                transform var(--transition-slow) ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Timeline content visibility */
.timeline-description {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease, margin 0.3s ease;
}

.timeline-skills {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease, margin 0.3s ease;
}

/* Show description on hover */
.timeline-item:hover .timeline-description,
.timeline-item:focus-within .timeline-description {
    max-height: 500px;
    opacity: 1;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.timeline-item:hover .timeline-skills,
.timeline-item:focus-within .timeline-skills {
    max-height: 200px;
    opacity: 1;
    margin-top: 1rem;
}

/* Enhanced card visibility on hover */
.timeline-item .glass-card {
    transition: all var(--transition-base) ease;
}

.timeline-item:hover .glass-card {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.timeline-dot::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: var(--accent-primary);
    opacity: 0;
    animation: pulse 2s ease infinite;
}

.timeline-dot-large::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: var(--accent-primary);
    opacity: 0;
    animation: pulse 2s ease infinite;
}

.timeline-item:hover .timeline-dot::before,
.timeline-item:hover .timeline-dot-large::before {
    opacity: 0.5;
}

.timeline-dot:hover,
.timeline-dot-large:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 6px var(--accent-primary);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Skill Bar Styles */
.skill-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 4px;
    transform-origin: left;
    transition: width 1s ease-out;
    animation: fillBar 1.5s ease-out forwards;
    animation-play-state: paused;
}

.skill-bar-fill.animate {
    animation-play-state: running;
}

@keyframes fillBar {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

/* Tab Animation */
.tab-content {
    animation: slideIn var(--transition-base) ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll Progress Bar */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transform-origin: left;
    z-index: 9999;
    box-shadow: 0 0 10px var(--accent-primary);
}

/* Navigation Enhancements */
nav a {
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transform: translateX(-50%);
    transition: width var(--transition-base) ease;
}

nav a:hover::after,
nav a:focus::after {
    width: 100%;
}

/* Footer Link Styles */
.footer-link {
    color: var(--accent-primary);
    text-decoration: none;
    transition: opacity var(--transition-base) ease;
}

.footer-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* CTA Button Enhancements */
.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow) ease, height var(--transition-slow) ease;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button span {
    position: relative;
    z-index: 1;
}

/* Portfolio Card Hover Effects */
.portfolio-card {
    perspective: 1000px;
}

.portfolio-card:hover .portfolio-image {
    transform: rotateY(5deg) rotateX(5deg);
}

.portfolio-image {
    transition: transform var(--transition-base) ease;
    transform-style: preserve-3d;
}

/* Responsive Typography */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .glass-card {
        background: rgba(255, 255, 255, 0.15);
        border-width: 2px;
    }

    .glass-card-hover:hover {
        background: rgba(255, 255, 255, 0.25);
    }
}

/* Dark Mode Enhancement (for browsers that support it) */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #000;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }

    .glass-card {
        background: white;
        border: 1px solid #ccc;
    }

    nav,
    .scroll-progress-bar,
    .cta-button {
        display: none;
    }

    .timeline-line {
        background: #ccc;
    }

    article {
        page-break-inside: avoid;
    }
}

/* Utility Classes */
.fadeIn {
    animation: fadeIn var(--transition-slow) ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slideUp {
    animation: slideUp var(--transition-base) ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scaleIn {
    animation: scaleIn var(--transition-base) ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Selection Styling */
::selection {
    background: var(--accent-primary);
    color: white;
}

::-moz-selection {
    background: var(--accent-primary);
    color: white;
}

/* Scrollbar Styling (Webkit browsers) */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) rgba(255, 255, 255, 0.05);
}