/* ==========================================
   Iron Sky — Landing Page Styles
   ========================================== */

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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a26;
    --surface: #16161f;
    --border: #1e1e2e;
    --text: #e4e4ec;
    --text-muted: #8888a0;
    --accent: #7c5cfc;
    --accent-glow: rgba(124, 92, 252, 0.25);
    --green: #4ade80;
    --green-bg: rgba(74, 222, 128, 0.08);
    --green-border: rgba(74, 222, 128, 0.2);
    --blue: #60a5fa;
    --blue-bg: rgba(96, 165, 250, 0.08);
    --blue-border: rgba(96, 165, 250, 0.2);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* --- Container --- */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo__icon {
    font-size: 1.4rem;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition);
    position: relative;
}

.nav__link:hover {
    color: var(--text);
}

.nav__link--cta {
    background: var(--accent);
    color: #fff;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: background var(--transition), transform var(--transition);
}

.nav__link--cta:hover {
    background: #6b4ae0;
    color: #fff;
    transform: translateY(-1px);
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    z-index: 110;
}

.burger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav */
.mobile-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 99;
    transform: translateY(-120%);
    transition: transform var(--transition);
    border-bottom: 1px solid var(--border);
}

.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav__link {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 8px 0;
    transition: color var(--transition);
}

.mobile-nav__link:hover {
    color: var(--text);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__stars {
    position: absolute;
    inset: 0;
}

.hero__stars .star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #fff;
    border-radius: 50%;
    animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.8; }
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124, 92, 252, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 20% 80%, rgba(74, 222, 128, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 80% 80%, rgba(96, 165, 250, 0.06) 0%, transparent 60%);
}

.hero__inner {
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 18px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out;
}

.hero__title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero__accent {
    background: linear-gradient(135deg, var(--accent), #a78bfa, var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto 40px;
    line-height: 1.7;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.hero__scroll-arrow {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
}

.btn--primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 24px var(--accent-glow);
}

.btn--primary:hover {
    background: #6b4ae0;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--accent-glow);
}

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

.btn--outline:hover {
    background: var(--surface);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

/* --- Section header --- */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header__label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-header__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-header__desc {
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    font-size: 1rem;
}

/* --- Servers --- */
.servers {
    padding: 100px 0;
}

.servers__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.server-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.server-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: opacity var(--transition);
}

.server-card:hover {
    background: var(--bg-card-hover);
    border-color: #2a2a3d;
    transform: translateY(-4px);
}

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

.server-card--mc::before {
    background: linear-gradient(90deg, var(--green), transparent);
}

.server-card--eco::before {
    background: linear-gradient(90deg, var(--blue), transparent);
}

.server-card__icon {
    margin-bottom: 20px;
}

.server-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.server-card__desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.6;
}

.server-card__ip {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.server-card__ip-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.server-card__ip-value {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    cursor: pointer;
}

.server-card__ip-value:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

.server-card__copy-icon {
    font-size: 0.85rem;
    opacity: 0.5;
    transition: opacity var(--transition);
}

.server-card__ip-value:hover .server-card__copy-icon {
    opacity: 1;
}

.server-card__status {
    display: inline-block;
    background: rgba(251, 146, 60, 0.1);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.25);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.server-card--offline {
    opacity: 0.6;
}

.server-card--offline:hover {
    opacity: 0.8;
}

.server-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 500;
}

.tag--green {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid var(--green-border);
}

.tag--blue {
    background: var(--blue-bg);
    color: var(--blue);
    border: 1px solid var(--blue-border);
}

/* --- Features --- */
.features {
    padding: 80px 0 100px;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: #2a2a3d;
    transform: translateY(-3px);
}

.feature-card__icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card__desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* --- Join / CTA --- */
.join {
    padding: 40px 0 100px;
}

.join__card {
    background: linear-gradient(135deg, var(--bg-card), var(--surface));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 64px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.join__card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, var(--accent), var(--green), var(--blue));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.3;
    pointer-events: none;
}

.join__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.join__desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 480px;
    margin: 0 auto 40px;
}

.join__ips {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.join__ip-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.join__ip-game {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 80px;
    text-align: right;
}

.join__ip-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    transition: all var(--transition);
    cursor: pointer;
}

.join__ip-btn:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.join__copy-hint {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
    font-family: var(--font);
    opacity: 0;
    transition: opacity var(--transition);
}

.join__ip-btn:hover .join__copy-hint {
    opacity: 1;
}

.join__ip-btn--offline {
    opacity: 0.5;
}

.join__ip-btn--offline .join__copy-hint {
    color: #fb923c;
    opacity: 1;
}

/* Social links in CTA */
.join__socials {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.join__social {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all var(--transition);
}

.join__social:hover {
    color: var(--text);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.join__social svg {
    flex-shrink: 0;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
}

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

.footer__socials {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--text-muted);
    transition: all var(--transition);
}

.footer__social-link:hover {
    color: var(--text);
    background: var(--surface);
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    font-weight: 800;
}

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

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 200;
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    box-shadow: 0 8px 32px var(--accent-glow);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* --- Responsive --- */
@media (max-width: 1000px) {
    .servers__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 900px) {
    .servers__grid {
        grid-template-columns: 1fr;
    }

    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .nav {
        display: none;
    }

    .burger {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero__title {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .hero__subtitle br {
        display: none;
    }

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

    .server-card {
        padding: 28px 20px;
    }

    .server-card__ip {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .join__card {
        padding: 40px 20px;
    }

    .join__ips {
        flex-direction: column;
        align-items: center;
    }

    .join__ip-item {
        flex-direction: column;
        gap: 6px;
    }

    .join__ip-game {
        text-align: center;
        min-width: auto;
    }

    .footer__inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .join__socials {
        gap: 10px;
    }

    .join__social {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .hero__scroll {
        display: none;
    }
}