/* ===========================================
   Royality.pl — Projekt Informatyczny
   Styles: kurtyna, dark theme, projekty
   =========================================== */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-dark: #0a0b0f;
    --bg-card: #12141a;
    --bg-elevated: #181b24;
    --accent: #00d4aa;
    --accent-dim: rgba(0, 212, 170, 0.15);
    --accent-glow: rgba(0, 212, 170, 0.25);
    --text: #e8eaed;
    --text-muted: #8b92a4;
    --border: #1e222d;
    --font: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ========== KURTYNA ========== */
.curtain {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.curtain-panel {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 50%;
    background: var(--bg-dark);
    transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 2;
}

.curtain-left {
    left: 0;
    border-right: 1px solid var(--border);
}

.curtain-right {
    right: 0;
    border-left: 1px solid var(--border);
}

.curtain.revealed .curtain-left {
    transform: translateX(-100%);
}

.curtain.revealed .curtain-right {
    transform: translateX(100%);
}

.curtain-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 2rem;
}

.curtain-logo {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.curtain-accent { color: var(--accent); }

.curtain-tagline {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-weight: 400;
}

.curtain-loader {
    width: 160px;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    margin: 0 auto 1.5rem;
    overflow: hidden;
}

.curtain-loader-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent), transparent);
    animation: curtainLoad 2.5s ease-in-out forwards;
}

@keyframes curtainLoad {
    to { width: 100%; }
}

.curtain-enter {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    color: var(--bg-dark);
    background: var(--accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.curtain-enter:hover {
    background: #00e6b8;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.curtain-enter svg {
    transition: transform 0.3s;
}

.curtain-enter:hover svg {
    transform: translateX(4px);
}

/* ========== GŁÓWNA ZAWARTOŚĆ ========== */
.main-content {
    opacity: 0;
    transform: scale(0.98);
    transition: opacity 0.8s 0.4s, transform 0.8s 0.4s;
}

.main-content.visible {
    opacity: 1;
    transform: scale(1);
}

/* Nawigacja */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(10, 11, 15, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s, background 0.3s;
}

.navbar.scrolled {
    border-color: var(--border);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

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

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

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    max-width: 720px;
}

.hero-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.hero-title .highlight {
    color: var(--accent);
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 540px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: #00e6b8;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

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

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(6px); }
}

/* Sekcje */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* O projekcie */
.about {
    background: var(--bg-card);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.code-block {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.code-keyword { color: var(--accent); }
.code-string { color: #7dd3fc; }

/* Projekty */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.75rem;
    transition: all 0.3s;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.project-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.project-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.project-tags span {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 4px;
}

/* Technologie */
.tech {
    background: var(--bg-card);
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.tech-item {
    padding: 0.75rem 1.25rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s;
}

.tech-item:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Kontakt */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--accent);
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-item a {
    color: var(--accent);
    text-decoration: none;
}

.contact-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 0.875rem 1rem;
    font-family: var(--font);
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    transition: border-color 0.3s;
}

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

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

/* Stopka */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    text-align: center;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.footer-logo span { color: var(--accent); }

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0.5rem 0 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* AOS-like animation */
[data-aos] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s, transform 0.6s;
}

[data-aos].visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsywność */
@media (max-width: 768px) {
    .menu-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1rem;
        border-left: 1px solid var(--border);
        transition: right 0.3s;
    }

    .nav-menu.active {
        right: 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-wrap: wrap;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .section { padding: 4rem 0; }
    .projects-grid { grid-template-columns: 1fr; }
}