/* Self-hosted fonts */
@font-face {
    font-family: 'Inter';
    src: url('../fonts/Inter-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/Inter-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/Inter-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/Inter-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/JetBrainsMono-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/JetBrainsMono-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/JetBrainsMono-SemiBold.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

:root {
    --terminal-green: #4ade80;
    --terminal-cyan: #22d3ee;
    --terminal-amber: #fbbf24;
    --terminal-red: #f87171;
    --terminal-bg: #0a0a0a;
    --terminal-border: #1f1f1f;
    --code-comment: #6b7280;
}

body {
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth;
    background-color: #030712;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

/* Terminal Window Styles */
.terminal-window {
    background: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    overflow: hidden;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.05),
        0 25px 50px -12px rgba(0, 0, 0, 0.8),
        0 0 100px rgba(34, 211, 238, 0.1);
}

.terminal-header {
    background: linear-gradient(180deg, #2a2a2a 0%, #1f1f1f 100%);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #333;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca40; }

.terminal-title {
    flex: 1;
    text-align: center;
    color: #888;
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
}

.terminal-body {
    padding: 24px;
    min-height: 300px;
}

/* Typing animation */
.typing-text {
    overflow: hidden;
    white-space: nowrap;
    animation: typing 2s steps(40, end);
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

.cursor {
    display: inline-block;
    width: 10px;
    height: 20px;
    background: var(--terminal-green);
    animation: blink 1s infinite;
    vertical-align: middle;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Glowing text effect */
.glow-text {
    text-shadow: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 30px currentColor;
}

.glow-green {
    color: var(--terminal-green);
    text-shadow: 0 0 10px var(--terminal-green), 0 0 20px var(--terminal-green);
}

.glow-cyan {
    background: linear-gradient(90deg, var(--terminal-cyan), var(--terminal-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero background */
.hero-bg {
    background: linear-gradient(180deg, #030712 0%, #0f172a 50%, #030712 100%);
    position: relative;
    overflow: hidden;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(74, 222, 128, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

/* Grid pattern overlay */
.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

/* Code block styling */
.code-block {
    background: #0d0d0d;
    border: 1px solid #1f1f1f;
    border-radius: 8px;
    padding: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    overflow-x: auto;
}

.code-keyword { color: #c084fc; }
.code-string { color: #4ade80; }
.code-function { color: #60a5fa; }
.code-comment { color: #6b7280; }
.code-number { color: #fbbf24; }
.code-property { color: #22d3ee; }

/* Card styles */
.card {
    background: linear-gradient(180deg, rgba(30, 30, 30, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.5), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(34, 211, 238, 0.1);
}

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

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, #0e7490 0%, #155e75 100%);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
    border: 1px solid #22d3ee;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
}

.btn-secondary {
    background: transparent;
    color: #e5e7eb;
    border: 1px solid #374151;
}

.btn-secondary:hover {
    border-color: #22d3ee;
    color: #22d3ee;
}

/* Section styles */
.section-dark {
    background: #030712;
}

.section-darker {
    background: linear-gradient(180deg, #0a0a0a 0%, #030712 100%);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #f9fafb;
}

/* Header styles */
header {
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

header nav a {
    position: relative;
    transition: color 0.3s ease;
}

header nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--terminal-cyan);
    transition: width 0.3s ease;
}

header nav a:hover::after {
    width: 100%;
}

header nav a:hover {
    color: var(--terminal-cyan);
}

/* Language toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}

.lang-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--terminal-cyan);
}

.lang-toggle span {
    color: rgba(255, 255, 255, 0.4);
}

.lang-toggle span.active {
    color: var(--terminal-cyan);
}

/* Hamburger menu */
.hamburger-icon span {
    display: block;
    width: 24px;
    height: 2px;
    margin: 5px auto;
    background-color: #e5e7eb;
    transition: all 0.3s ease-in-out;
}

.hamburger-icon.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-icon.open span:nth-child(2) {
    opacity: 0;
}

.hamburger-icon.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Status indicator */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 9999px;
    font-size: 12px;
    color: var(--terminal-green);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--terminal-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

/* Tech stack badges */
.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 12px;
    color: #9ca3af;
    font-family: 'JetBrains Mono', monospace;
    transition: all 0.3s ease;
}

.tech-badge:hover {
    border-color: var(--terminal-cyan);
    color: var(--terminal-cyan);
}

/* Footer */
.footer-bg {
    background: linear-gradient(180deg, #030712 0%, #000000 100%);
    border-top: 1px solid rgba(255,255,255,0.05);
}

html {
    scroll-padding-top: 80px;
}

/* Scroll animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stats counter */
.stat-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--terminal-cyan) 0%, var(--terminal-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Blog specific styles */
.blog-card {
    background: linear-gradient(180deg, rgba(30, 30, 30, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(34, 211, 238, 0.1);
}

.blog-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, rgba(74, 222, 128, 0.1) 100%);
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.2);
    border-radius: 4px;
    font-size: 11px;
    color: var(--terminal-cyan);
    font-family: 'JetBrains Mono', monospace;
    text-transform: uppercase;
}

.blog-date {
    font-size: 12px;
    color: #6b7280;
    font-family: 'JetBrains Mono', monospace;
}

/* Article styles */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #f9fafb;
    margin-bottom: 1rem;
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #f9fafb;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #e5e7eb;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.article-content p {
    color: #9ca3af;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.article-content a {
    color: var(--terminal-cyan);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-content a:hover {
    color: var(--terminal-green);
}

.article-content ul,
.article-content ol {
    color: #9ca3af;
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.article-content code {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--terminal-cyan);
}

.article-content pre {
    background: #0d0d0d;
    border: 1px solid #1f1f1f;
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.article-content pre code {
    background: transparent;
    padding: 0;
    color: #e5e7eb;
}

.article-content blockquote {
    border-left: 3px solid var(--terminal-cyan);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: #6b7280;
    font-style: italic;
}

/* D3.js visualization container */
.d3-container {
    background: linear-gradient(180deg, rgba(30, 30, 30, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.d3-container svg {
    width: 100%;
    height: auto;
}

/* Static diagram container (for draw.io SVG exports) */
.diagram-container {
    background: linear-gradient(180deg, rgba(30, 30, 30, 0.8) 0%, rgba(15, 15, 15, 0.9) 100%);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.diagram-container img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #22d3ee 0%, #06b6d4 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.5);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    color: #030712;
}

/* Logo Slider */
.logo-slider {
    position: relative;
    width: calc(100% - 8rem);
    max-width: 1400px;
    margin: 0 auto;
    overflow: hidden;
}

.logo-slider::before,
.logo-slider::after {
    content: '';
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logo-slider::before {
    left: 0;
    background: linear-gradient(90deg, #030712 0%, transparent 100%);
}

.logo-slider::after {
    right: 0;
    background: linear-gradient(90deg, transparent 0%, #030712 100%);
}

.logo-track {
    display: flex;
    align-items: center;
    gap: 4rem;
    animation: scroll-logos 40s linear infinite;
    width: max-content;
    will-change: transform;
}

.logo-track:hover {
    animation-play-state: paused;
}

.logo-slide {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
}

.client-logo {
    height: 65px;
    width: auto;
    max-width: 190px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.6);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.client-logo:hover {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
}

@keyframes scroll-logos {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Social Links */
.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ca3af;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(34, 211, 238, 0.1);
    border-color: var(--terminal-cyan);
    color: var(--terminal-cyan);
    transform: translateY(-2px);
}