/* ====================================
   Terminal/Cyber Security Theme
   ==================================== */

/* ====================================
   Local Fonts (DSGVO-konform)
   ==================================== */

/* JetBrains Mono - Light 300 */
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/JetBrainsMono-Light.woff2') format('woff2');
}

/* JetBrains Mono - Regular 400 */
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/JetBrainsMono-Regular.woff2') format('woff2');
}

/* JetBrains Mono - Medium 500 */
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/JetBrainsMono-Medium.woff2') format('woff2');
}

/* JetBrains Mono - Bold 700 */
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/JetBrainsMono-Bold.woff2') format('woff2');
}

/* Share Tech Mono - Regular 400 */
@font-face {
    font-family: 'Share Tech Mono';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/ShareTechMono-Regular.ttf') format('truetype');
}

/* ====================================
   CSS Variables
   ==================================== */
:root {
    /* Dark Terminal Theme */
    --bg-primary: #0a0e27;
    --bg-secondary: #10162d;
    --bg-tertiary: #1a2142;
    --text-primary: #00ff41;
    --text-secondary: #00cc33;
    --text-muted: #6b8e23;
    --accent-cyan: #00ffff;
    --accent-orange: #ff6b00;
    --accent-red: #ff0051;
    --accent-purple: #bd00ff;
    --border-color: #00ff41;
    --shadow: rgba(0, 255, 65, 0.2);
    --glow: rgba(0, 255, 65, 0.5);
}

[data-theme="light"] {
    /* Light Hacker Theme */
    --bg-primary: #f0f0f0;
    --bg-secondary: #e0e0e0;
    --bg-tertiary: #d0d0d0;
    --text-primary: #00aa00;
    --text-secondary: #008800;
    --text-muted: #555555;
    --accent-cyan: #0088aa;
    --accent-orange: #cc5500;
    --accent-red: #cc0033;
    --accent-purple: #8800cc;
    --border-color: #00aa00;
    --shadow: rgba(0, 170, 0, 0.2);
    --glow: rgba(0, 170, 0, 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Scanline effect */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 1000;
    opacity: 0.3;
}

/* CRT flicker effect */
@keyframes flicker {
    0% { opacity: 0.98; }
    50% { opacity: 1; }
    100% { opacity: 0.98; }
}

body {
    animation: flicker 0.15s infinite;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--glow);
}

/* ====================================
   Header/Navigation
   ==================================== */
header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 0 15px var(--glow);
    font-family: 'Share Tech Mono', monospace;
    letter-spacing: 2px;
}

.logo::before {
    content: "root@kurowski:~$ ";
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    box-shadow: 0 0 10px var(--shadow);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--border-color);
    color: var(--bg-primary);
    box-shadow: 0 0 15px var(--glow);
}

/* ====================================
   Container & Layout
   ==================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

main {
    min-height: 60vh;
}

/* ====================================
   Terminal Window Effect
   ==================================== */
.terminal-window {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: 0 0 20px var(--shadow);
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

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

.terminal-button.close { background: var(--accent-red); }
.terminal-button.minimize { background: var(--accent-orange); }
.terminal-button.maximize { background: var(--text-primary); }

.terminal-title {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-left: 1rem;
}

.terminal-content {
    padding: 1.5rem;
}

/* ====================================
   Hero Section
   ==================================== */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    position: relative;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px var(--glow);
    font-family: 'Share Tech Mono', monospace;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { text-shadow: 0 0 20px var(--glow); }
    50% { text-shadow: 0 0 30px var(--glow), 0 0 40px var(--glow); }
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero .cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border: 2px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--glow);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--glow);
}

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

/* ====================================
   Cards & Posts
   ==================================== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    position: relative;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--text-primary);
    box-shadow: 0 0 10px var(--glow);
}

.card:hover {
    transform: translateX(5px);
    box-shadow: 0 0 25px var(--shadow);
}

.card-title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.card-meta::before {
    content: "[";
    color: var(--accent-cyan);
}

.card-meta::after {
    content: "]";
    color: var(--accent-cyan);
}

.card-content {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ====================================
   Tags
   ==================================== */
.tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.tag {
    padding: 0.3rem 0.8rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* ====================================
   Skills Grid
   ==================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.skill-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
}

.skill-category h3 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    hyphens: auto;
}

.skill-category h3::before {
    content: "# ";
    color: var(--text-primary);
}

.skill-category ul {
    list-style: none;
    padding-left: 0;
}

.skill-category li {
    padding: 0.3rem 0;
    color: var(--text-secondary);
}

.skill-category li::before {
    content: "→ ";
    color: var(--text-primary);
}

/* ====================================
   Code Blocks
   ==================================== */
pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
    border-left: 4px solid var(--text-primary);
}

code {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-cyan);
}

/* ====================================
   Footer
   ==================================== */
footer {
    background: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
}

footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer p::before {
    content: "$ ";
    color: var(--text-primary);
}

/* ====================================
   Hamburger Menu
   ==================================== */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    box-shadow: 0 0 5px var(--glow);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

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

/* ====================================
   Responsive
   ==================================== */
@media (max-width: 768px) {
    /* Hamburger Menu */
    .hamburger {
        display: flex;
        order: 3;
    }

    nav {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .logo {
        order: 1;
    }

    .theme-toggle {
        order: 2;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        order: 4;
        background: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        border-radius: 4px;
        padding: 1rem;
        margin-top: 1rem;
        animation: slideDown 0.3s ease;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 0.8rem;
        width: 100%;
    }

    /* Größere Hero-Schrift */
    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    /* Skills Grid */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    /* Touch-optimierte Buttons */
    .btn {
        min-height: 48px;
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
        margin: 0.5rem 0;
    }

    .theme-toggle {
        min-height: 44px;
        min-width: 44px;
        padding: 0.8rem 1rem;
    }

    /* Bessere Card-Abstände */
    .card {
        padding: 1.2rem;
    }

    .card-title {
        font-size: 1.5rem;
    }

    /* Größere Tags */
    .tag {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        min-height: 36px;
        display: inline-flex;
        align-items: center;
    }

    /* Terminal Window */
    .terminal-window {
        margin: 1rem 0;
    }

    .terminal-content {
        padding: 1rem;
    }

    /* ASCII Art kleiner auf Mobile */
    .ascii-art {
        font-size: 0.7rem !important;
        line-height: 1.2 !important;
    }
}

/* Extra kleine Smartphones */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .theme-toggle {
        font-size: 0.8rem;
        padding: 0.6rem 0.8rem;
    }

    .card-title {
        font-size: 1.3rem;
    }

    body {
        font-size: 15px;
    }

    /* ASCII Art noch kleiner auf sehr kleinen Smartphones */
    .ascii-art {
        font-size: 0.55rem !important;
        line-height: 1.1 !important;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ====================================
   Custom Scrollbar
   ==================================== */
::-webkit-scrollbar {
    width: 10px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-primary);
    box-shadow: 0 0 10px var(--glow);
}

/* ====================================
   Text Selection
   ==================================== */
::selection {
    background: var(--text-primary);
    color: var(--bg-primary);
}

/* ====================================
   Typing Animation
   ==================================== */
@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    50% { border-color: transparent; }
}

.typing-text {
    overflow: hidden;
    border-right: 2px solid var(--text-primary);
    white-space: nowrap;
    animation: typing 3s steps(40) 1s 1 normal both,
               blink 0.75s step-end infinite;
}