/* Tower Tackle - refreshed UI system */

:root {
    --bg-950: #040d14;
    --bg-900: #081725;
    --bg-850: #0d2234;
    --surface: rgba(17, 42, 64, 0.72);
    --surface-strong: #14344d;
    --border: rgba(94, 210, 255, 0.24);
    --text: #ecf7ff;
    --text-muted: #99b9cd;
    --primary: #57d7ff;
    --secondary: #2fd3a2;
    --accent: #ffc068;
    --danger: #ff6b7f;
    --gradient-main: linear-gradient(130deg, #57d7ff 0%, #2fd3a2 58%, #ffc068 100%);
    --gradient-surface: linear-gradient(150deg, rgba(87, 215, 255, 0.16) 0%, rgba(47, 211, 162, 0.14) 50%, rgba(255, 192, 104, 0.1) 100%);
    --shadow-soft: 0 10px 35px rgba(6, 19, 29, 0.38);
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: "Space Grotesk", "Segoe UI", sans-serif;
    color: var(--text);
    line-height: 1.65;
    background:
        radial-gradient(circle at 14% 12%, rgba(87, 215, 255, 0.26), transparent 34%),
        radial-gradient(circle at 83% 9%, rgba(47, 211, 162, 0.18), transparent 28%),
        radial-gradient(circle at 86% 84%, rgba(255, 192, 104, 0.18), transparent 32%),
        linear-gradient(160deg, var(--bg-950) 0%, var(--bg-900) 42%, var(--bg-850) 100%);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(rgba(151, 194, 219, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(151, 194, 219, 0.055) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 85%);
}

a {
    color: inherit;
}

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

ul {
    list-style: none;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #ffffff;
    color: #05223a;
    padding: 12px 18px;
    border-radius: 0 0 10px 10px;
    font-weight: 700;
    z-index: 200;
}

.skip-link:focus-visible {
    left: 12px;
}

.container {
    width: min(1160px, calc(100% - 2.4rem));
    margin: 0 auto;
}

.section {
    padding: 84px 0;
    position: relative;
}

.section + .section {
    border-top: 1px solid rgba(120, 186, 216, 0.14);
}

.section-head {
    max-width: 760px;
    margin: 0 auto 38px;
    text-align: center;
}

.section-head h2 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: clamp(2.1rem, 4vw, 3.2rem);
    letter-spacing: 0.02em;
}

.section-head p {
    margin-top: 10px;
    color: var(--text-muted);
    font-size: 1.03rem;
}

.mt-8 {
    margin-top: 8px;
}

.mt-20 {
    margin-top: 20px;
}

.visual-frame {
    background: var(--gradient-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 10px;
    box-shadow: var(--shadow-soft);
}

.visual-frame img {
    width: 100%;
    border-radius: calc(var(--radius-xl) - 8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 120;
    backdrop-filter: blur(12px);
    background: rgba(5, 18, 28, 0.68);
    border-bottom: 1px solid rgba(94, 210, 255, 0.15);
}

.site-header.is-scrolled {
    box-shadow: 0 8px 30px rgba(3, 10, 16, 0.36);
    background: rgba(5, 18, 28, 0.88);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 78px;
}

.logo {
    display: inline-flex;
    align-items: center;
    min-width: 132px;
}

.logo-img {
    width: 146px;
    max-height: 48px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 26px;
}

.nav-links a {
    position: relative;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    transform-origin: left;
    transform: scaleX(0);
    background: var(--gradient-main);
    transition: transform 0.22s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active-link {
    color: var(--text);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.active-link::after {
    transform: scaleX(1);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(12, 37, 56, 0.6);
    color: var(--text);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 4px auto;
    background: currentColor;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    text-decoration: none;
    border: 1px solid transparent;
    padding: 11px 20px;
    cursor: pointer;
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    letter-spacing: 0.03em;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn:focus-visible,
.nav-toggle:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(87, 215, 255, 0.36);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--gradient-main);
    color: #032033;
    box-shadow: 0 10px 24px rgba(61, 198, 220, 0.28);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(61, 198, 220, 0.36);
}

.btn-outline {
    border-color: var(--border);
    background: rgba(10, 31, 47, 0.58);
    color: var(--text);
}

.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.28);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 14px 26px;
    font-size: 1.02rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(87, 215, 255, 0.12);
    border: 1px solid rgba(87, 215, 255, 0.32);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.76rem;
    font-weight: 700;
}

.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero {
    padding: 92px 0 72px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 50px;
}

.hero-copy h1 {
    margin-top: 18px;
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: clamp(2.4rem, 6.1vw, 4.25rem);
    line-height: 0.98;
    letter-spacing: 0.01em;
}

.hero-copy p {
    margin-top: 18px;
    max-width: 64ch;
    color: var(--text-muted);
    font-size: 1.05rem;
}

.hero-actions {
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.hero-stats {
    margin-top: 28px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.stat-card {
    padding: 14px 14px 12px;
    background: rgba(14, 40, 60, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.stat-card strong {
    display: block;
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.2rem;
    color: var(--accent);
}

.stat-card span {
    color: var(--text-muted);
    font-size: 0.86rem;
}

.hero-visual {
    position: relative;
}

.hero-visual .visual-frame {
    transform: rotate(-1.5deg);
}

.floating-tag {
    position: absolute;
    padding: 9px 12px;
    font-size: 0.76rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(9, 26, 41, 0.88);
    color: var(--text);
    box-shadow: var(--shadow-soft);
    animation: float-tag 4.2s ease-in-out infinite;
}

.floating-tag.tag-1 {
    top: -14px;
    right: 12px;
}

.floating-tag.tag-2 {
    left: -16px;
    bottom: 28px;
    animation-delay: 0.9s;
}

.floating-tag.tag-3 {
    right: 18px;
    bottom: -14px;
    animation-delay: 1.7s;
}

.cards-grid {
    display: grid;
    gap: 18px;
}

.cards-grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards-grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-grid.cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--gradient-surface);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.card::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(140deg, rgba(255, 255, 255, 0.12), transparent 34%);
}

.card-body {
    position: relative;
    z-index: 1;
    padding: 24px;
}

.card-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: rgba(87, 215, 255, 0.16);
    border: 1px solid rgba(87, 215, 255, 0.38);
    color: var(--primary);
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-weight: 700;
}

.card h3 {
    margin-top: 14px;
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.45rem;
}

.card p,
.card li {
    margin-top: 10px;
    color: var(--text-muted);
}

.card ul {
    margin-top: 12px;
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
}

.page-hero {
    padding: 84px 0 34px;
}

.page-hero h1 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: clamp(2.1rem, 5vw, 3.6rem);
    text-align: center;
}

.page-hero p {
    margin-top: 10px;
    color: var(--text-muted);
    text-align: center;
}

.content-stack {
    display: grid;
    gap: 22px;
}

.play-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 24px;
    align-items: start;
}

.game-shell {
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    background: var(--gradient-surface);
    box-shadow: var(--shadow-soft);
    padding: 18px;
}

.game-shell canvas {
    width: 100%;
    height: auto;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: linear-gradient(150deg, rgba(87, 215, 255, 0.16), rgba(47, 211, 162, 0.1));
    display: block;
}

.game-scorebar {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.score-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(7, 25, 37, 0.7);
    padding: 11px 12px;
}

.score-label {
    color: var(--text-muted);
    font-size: 0.83rem;
}

.score-value {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.5rem;
    color: var(--primary);
}

.panel {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: rgba(8, 30, 46, 0.75);
    box-shadow: var(--shadow-soft);
    padding: 22px;
}

.panel h3 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.35rem;
}

.panel ul {
    margin-top: 10px;
    padding-left: 18px;
    list-style: disc;
}

.panel li {
    color: var(--text-muted);
    margin-top: 6px;
}

.panel + .panel {
    margin-top: 16px;
}

.form-shell {
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    background: var(--gradient-surface);
    box-shadow: var(--shadow-soft);
    padding: 24px;
}

.form-title {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 2rem;
}

.form-grid {
    display: grid;
    gap: 14px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text);
    font-weight: 700;
    font-size: 0.94rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border: 1px solid rgba(130, 192, 224, 0.28);
    border-radius: 12px;
    padding: 11px 12px;
    background: rgba(6, 25, 38, 0.7);
    color: var(--text);
    font-family: inherit;
    font-size: 0.96rem;
}

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

.form-note {
    margin-top: 14px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-feedback {
    margin-top: 10px;
    min-height: 20px;
    color: var(--secondary);
    font-size: 0.9rem;
}

.legal-layout {
    max-width: 900px;
    margin: 0 auto;
}

.legal-block {
    margin-top: 16px;
}

.legal-block h2 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.legal-block h3 {
    margin-top: 16px;
    font-size: 1.16rem;
    color: var(--primary);
}

.legal-block p,
.legal-block li {
    color: var(--text-muted);
    margin-top: 8px;
}

.legal-block ul {
    margin-left: 18px;
    list-style: disc;
}

.cta {
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    background: linear-gradient(140deg, rgba(87, 215, 255, 0.16), rgba(47, 211, 162, 0.16), rgba(255, 192, 104, 0.1));
    text-align: center;
    padding: 42px 26px;
    box-shadow: var(--shadow-soft);
}

.cta h2 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: clamp(1.9rem, 4vw, 2.8rem);
}

.cta p {
    margin: 10px auto 0;
    max-width: 64ch;
    color: var(--text-muted);
}

.cta .btn {
    margin-top: 22px;
}

.footer {
    margin-top: 80px;
    border-top: 1px solid rgba(94, 210, 255, 0.16);
    background: rgba(6, 20, 32, 0.72);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.1fr repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding: 46px 0 28px;
}

.footer h4 {
    font-family: "Rajdhani", "Segoe UI", sans-serif;
    font-size: 1.2rem;
}

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

.footer ul {
    margin-top: 8px;
}

.footer li + li {
    margin-top: 6px;
}

.footer a:hover,
.footer a:focus-visible {
    color: var(--text);
}

.footer-bottom {
    border-top: 1px solid rgba(94, 210, 255, 0.16);
    padding: 14px 0 20px;
    color: var(--text-muted);
    font-size: 0.88rem;
    text-align: center;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

[data-delay="1"] {
    transition-delay: 0.08s;
}

[data-delay="2"] {
    transition-delay: 0.15s;
}

[data-delay="3"] {
    transition-delay: 0.22s;
}

@keyframes float-tag {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@media (max-width: 1080px) {
    .cards-grid.cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .footer-main {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .hero {
        padding-top: 68px;
    }

    .hero-grid,
    .split,
    .cards-grid.cols-3,
    .cards-grid.cols-2 {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .nav-links {
        position: absolute;
        top: 78px;
        left: 1rem;
        right: 1rem;
        padding: 16px;
        border: 1px solid var(--border);
        border-radius: 16px;
        background: rgba(6, 24, 37, 0.96);
        box-shadow: var(--shadow-soft);
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        transform: scale(0.98) translateY(-8px);
        transform-origin: top center;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    }

    .nav-links.is-open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: scale(1) translateY(0);
    }

    .nav-cta .btn {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(1160px, calc(100% - 1.2rem));
    }

    .section {
        padding: 64px 0;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .cards-grid.cols-4 {
        grid-template-columns: 1fr;
    }

    .card-body,
    .panel,
    .form-shell {
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}