/* ============================================================
   Petr Balvín – Shared Stylesheet
   Pure HTML/CSS/JS – No frameworks, no Western corp bloat
   ============================================================ */

:root {
    --bg-primary: #2c001e;
    --bg-secondary: #3d0029;
    --bg-tertiary: #5e2750;
    --text-primary: #f3f4f6;
    --text-secondary: #c9c9c9;
    --text-muted: #999999;
    --accent-primary: #e95420;
    --accent-secondary: #aea79f;
    --accent-gradient: linear-gradient(135deg, #e95420 0%, #c74614 100%);
    --code-bg: #2c001e;
    --terminal-bg: #300a24;
    --terminal-green: #87ff5f;
    --terminal-blue: #729fcf;
    --border-color: rgba(233, 84, 32, 0.2);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --glow-orange: rgba(233, 84, 32, 0.4);
    --font-main: "Ubuntu", sans-serif;
    --font-mono: "Ubuntu Mono", monospace;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.35s ease-out;
}
body.page-ready {
    opacity: 1;
}
body.page-exit {
    opacity: 0;
    transition: opacity 0.18s ease-in;
}

/* === Animated Background === */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    overflow: hidden;
    background: linear-gradient(135deg, #2c001e 0%, #3d0029 50%, #5e2750 100%);
}

.bg-animation::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    z-index: -3;
    background:
        radial-gradient(
            circle at 20% 30%,
            rgba(233, 84, 32, 0.18) 0%,
            transparent 45%
        ),
        radial-gradient(
            circle at 75% 25%,
            rgba(180, 48, 12, 0.12) 0%,
            transparent 40%
        ),
        radial-gradient(
            circle at 60% 70%,
            rgba(139, 92, 246, 0.08) 0%,
            transparent 45%
        ),
        radial-gradient(
            circle at 35% 80%,
            rgba(233, 84, 32, 0.1) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 85% 55%,
            rgba(94, 39, 80, 0.15) 0%,
            transparent 40%
        );
    animation: bgFloat 25s ease-in-out infinite;
}

@keyframes bgFloat {
    0%,
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    20% {
        transform: translate(3%, 1%) rotate(2deg) scale(1.05);
    }
    40% {
        transform: translate(-1%, 3%) rotate(-1deg) scale(0.97);
    }
    60% {
        transform: translate(-2%, -1%) rotate(1deg) scale(1.03);
    }
    80% {
        transform: translate(1%, -2%) rotate(-2deg) scale(0.98);
    }
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-image:
        linear-gradient(rgba(233, 84, 32, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(233, 84, 32, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.interactive-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #c74614;
}

/* === Navigation === */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.25rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(44, 0, 30, 0.9);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

nav.scrolled {
    padding: 0.75rem 5%;
    background: rgba(44, 0, 30, 0.95);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo .bracket {
    color: var(--accent-primary);
}

.logo .cursor {
    display: inline-block;
    width: 10px;
    height: 20px;
    background: var(--accent-primary);
    animation: blink 1s infinite;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::before {
    content: "<";
    color: var(--accent-primary);
    opacity: 0;
    margin-right: 4px;
    transition: var(--transition);
}

.nav-links a::after {
    content: "/>";
    color: var(--accent-primary);
    opacity: 0;
    margin-left: 4px;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-primary);
}
.nav-links a:hover::before,
.nav-links a:hover::after {
    opacity: 1;
}

.nav-links a.active {
    color: var(--accent-primary);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
    background: none;
    border: none;
}

/* === Buttons === */
.btn {
    padding: 1rem 2rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 20px var(--glow-orange);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--glow-orange);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-3px);
}

.btn-sm {
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
}

/* === Page Header (for subpages) === */
.page-header {
    padding: 160px 5% 80px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-header .section-number {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: block;
}

.page-header .page-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.page-header .page-desc {
    color: var(--text-secondary);
    font-size: 1.15rem;
    line-height: 1.8;
}

/* === Sections General === */
section {
    padding: 100px 5%;
    position: relative;
}

.section-header {
    text-align: center;
    margin: 0 auto 4rem auto;
    max-width: 700px;
}

.section-number {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
}

/* === Breadcrumb === */
.breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: var(--accent-primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}
.breadcrumb span {
    color: var(--text-secondary);
}

/* === Cards (generic) === */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(233, 84, 32, 0.4);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 5% 80px;
    position: relative;
}

.hero-container {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-greeting {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-greeting::before {
    content: "";
    width: 30px;
    height: 1px;
    background: var(--accent-primary);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-title .highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 550px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* === Terminal === */
.terminal-window {
    background: var(--terminal-bg);
    border-radius: 12px;
    border: none;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
}

.terminal-header {
    background: #3d1f36;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    user-select: none;
}

.terminal-title {
    font-family: var(--font-main);
    font-size: 0.85rem;
    color: #ffffff;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.terminal-icon-left {
    position: absolute;
    left: 15px;
    color: #ffffff;
    font-size: 0.9rem;
    opacity: 0.9;
}

.terminal-actions-right {
    position: absolute;
    right: 15px;
    display: flex;
    align-items: center;
    gap: 18px;
    color: #ffffff;
    font-size: 0.85rem;
}

.terminal-actions-right i {
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.terminal-actions-right i:hover {
    opacity: 1;
}

.terminal-body {
    padding: 15px 20px;
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: #ffffff;
    min-height: 200px;
    text-align: left;
}

.terminal-prompt {
    color: var(--terminal-green);
    font-weight: bold;
}
.terminal-path {
    color: var(--terminal-blue);
    font-weight: bold;
}
.terminal-command {
    color: #ffffff;
}

.terminal-cursor {
    display: inline-block;
    width: 10px;
    height: 1.25rem;
    background: #ffffff;
    margin-left: 2px;
    vertical-align: middle;
    animation: blink 1.2s infinite;
}

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

/* === About Section === */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.about-image-wrapper::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--accent-gradient);
    opacity: 0.2;
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    filter: grayscale(30%);
    transition: var(--transition);
}

.about-image-wrapper:hover img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.about-image-decoration {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    z-index: -1;
}

.about-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* === Tech List === */
.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.tech-item {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    background: rgba(233, 84, 32, 0.15);
    border: 1px solid rgba(233, 84, 32, 0.3);
    border-radius: 20px;
    color: var(--accent-primary);
    transition: var(--transition);
}

.tech-item:hover {
    background: rgba(233, 84, 32, 0.25);
    transform: translateY(-2px);
}

/* === Skills Grid === */
.skills-container {
    max-width: 1200px;
    margin: 0 auto;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: rgba(233, 84, 32, 0.4);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.skill-icon {
    width: 50px;
    height: 50px;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.skill-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.skill-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 4px;
    color: var(--accent-primary);
}

/* === AI Section === */
.ai-container {
    max-width: 1200px;
    margin: 0 auto;
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
}

.ai-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.ai-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.ai-card:hover {
    transform: translateY(-8px);
    border-color: rgba(233, 84, 32, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

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

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

.ai-icon-svg {
    width: 70px;
    height: 70px;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent-primary);
    transition: var(--transition);
}

.ai-card:hover .ai-icon-svg {
    box-shadow: 0 0 20px var(--glow-orange);
}

.ai-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.ai-subtitle {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

.ai-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.ai-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.ai-feature {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    background: rgba(233, 84, 32, 0.1);
    border: 1px solid rgba(233, 84, 32, 0.2);
    border-radius: 6px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-feature i {
    color: var(--accent-primary);
    font-size: 0.7rem;
}

.ai-code-preview {
    background: var(--terminal-bg);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    overflow-x: auto;
    line-height: 1.5;
}

.ai-code-line {
    color: #d3d3d3;
}
.ai-code-keyword {
    color: #ff6b6b;
    font-weight: bold;
}
.ai-code-string {
    color: #fce94f;
}
.ai-code-comment {
    color: #888;
    font-style: italic;
}
.ai-code-function {
    color: #60efff;
}

/* === Projects Section === */
.projects-container {
    max-width: 1200px;
    margin: 0 auto;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(233, 84, 32, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(
        135deg,
        var(--bg-tertiary) 0%,
        var(--bg-secondary) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image i {
    font-size: 4rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(44, 0, 30, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    text-decoration: none;
    transform: translateY(20px);
    transition: var(--transition);
}

.project-card:hover .project-link {
    transform: translateY(0);
}
.project-link:hover {
    color: var(--accent-primary);
    transform: scale(1.15);
}

.project-content {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-primary);
    padding: 0.25rem 0.75rem;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 4px;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.project-license {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

.project-license i {
    color: var(--accent-primary);
}

.project-overlay.split-mode {
    gap: 0;
}

.split-side {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 2rem;
    transition: var(--transition);
    transform: translateY(20px);
}

.project-card:hover .split-side {
    transform: translateY(0);
}
.project-card:hover .code-side {
    transition-delay: 0.05s;
}
.project-card:hover .play-side {
    transition-delay: 0.1s;
}

.split-side:hover {
    background: rgba(233, 84, 32, 0.4);
    color: var(--accent-primary);
}

.split-side span {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.split-divider {
    width: 1px;
    height: 50%;
    background: rgba(255, 255, 255, 0.2);
}

/* === Contact Section === */
.contact-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    transition: var(--transition);
    text-decoration: none;
}

.contact-method:hover {
    color: var(--accent-primary);
}

.contact-method-icon {
    width: 45px;
    height: 45px;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(233, 84, 32, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    padding: 1.25rem 2rem;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--glow-orange);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* === Form Helpers === */
.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;
}

.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.form-status {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-status.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
}

.form-status.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.form-status.warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #f59e0b;
}

.form-input.input-error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input.input-valid {
    border-color: #10b981;
}

/* === Detail Page Styles === */
.detail-section {
    padding: 60px 5%;
}

.detail-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.detail-section h3 {
    font-size: 1.3rem;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.detail-section p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.detail-section ul {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    line-height: 1.8;
}

.detail-section ul li {
    margin-bottom: 0.5rem;
}

.detail-section ul li::marker {
    color: var(--accent-primary);
}

/* Timeline (for CV/experience) */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-left: 1.5rem;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -2.35rem;
    top: 0.4rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-primary);
    border: 2px solid var(--bg-primary);
    box-shadow: 0 0 10px var(--glow-orange);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

.timeline-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.timeline-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Badges === */
.os-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(233, 84, 32, 0.2);
    border: 1px solid rgba(233, 84, 32, 0.3);
    border-radius: 8px;
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

.license-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(233, 84, 32, 0.2);
    border: 1px solid rgba(233, 84, 32, 0.3);
    border-radius: 8px;
    margin-top: 1rem;
    margin-right: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

/* === CTA Section === */
.cta-section {
    text-align: center;
    padding: 80px 5%;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-section h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* === Footer === */
footer {
    padding: 4rem 5% 3rem;
    border-top: 2px solid var(--accent-primary);
    text-align: center;
    background: linear-gradient(
        180deg,
        var(--bg-primary) 0%,
        var(--bg-secondary) 100%
    );
    position: relative;
}

footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: var(--accent-gradient);
    box-shadow: 0 0 20px var(--glow-orange);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.social-link {
    width: 55px;
    height: 55px;
    background: rgba(233, 84, 32, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.4rem;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    border-color: var(--accent-primary);
    color: white;
    background: var(--accent-gradient);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(233, 84, 32, 0.4);
}

.footer-text {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.footer-text a {
    color: var(--accent-primary);
    text-decoration: none;
}

/* === Blog Post Card === */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2.5rem;
}

.blog-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: rgba(233, 84, 32, 0.4);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.blog-card-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.blog-card-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.blog-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.blog-card-title a:hover {
    color: var(--accent-primary);
}

.blog-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.blog-card-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: rgba(233, 84, 32, 0.15);
    border-radius: 4px;
    color: var(--accent-primary);
}

/* === Animations === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    .hero-content {
        order: 1;
    }
    .terminal-window {
        order: 2;
        max-width: 600px;
        margin: 0 auto;
    }
    .hero-greeting,
    .hero-buttons {
        justify-content: center;
    }
    .hero-greeting::before {
        display: none;
    }
    .about-grid,
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(44, 0, 30, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        border-bottom: 1px solid var(--border-color);
        z-index: 999;
    }
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .menu-toggle {
        display: block;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .skills-grid,
    .ai-grid,
    .projects-grid,
    .blog-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}