@import url('https://fonts.googleapis.com/css2?family=Inter:wght@500;600;700;800&family=JetBrains+Mono:wght@500;600;700&family=Instrument+Serif:ital@0;1&display=swap');

:root {
    --background: hsl(265, 28%, 7%);
    --foreground: hsl(0, 0%, 98%);
    --card: hsl(265, 24%, 11%);
    --card-hover: hsl(265, 22%, 14%);
    --muted: hsl(265, 12%, 72%);
    --primary: hsl(265, 89%, 66%);
    --primary-glow: hsl(270, 85%, 72%);
    --primary-soft: hsl(265, 89%, 66%, 0.14);
    --primary-border: hsl(265, 89%, 66%, 0.28);
    --radius: 0.75rem;
    --shadow-card: 0 1px 0 hsl(0 0% 100% / 0.04) inset, 0 12px 40px -12px hsl(0 0% 0% / 0.6);
    --shadow-glow: 0 0 60px hsl(265 89% 66% / 0.18);

    --primary-dark: var(--background);
    --secondary-dark: var(--card-hover);
    --card-bg: var(--card);
    --accent-color: var(--primary);
    --accent-light: var(--primary-glow);
    --text-light: var(--foreground);
    --text-secondary: var(--muted);
    --success: hsl(152, 70%, 45%);
    --danger: hsl(0, 72%, 58%);
    --warning: hsl(38, 92%, 55%);
    --info: hsl(265, 70%, 70%);
    --secondary: hsl(222, 10%, 18%);
    --border-radius: var(--radius);
    --box-shadow: var(--shadow-card);
}

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

html {
    color-scheme: dark only;
}

body {
    background-color: hsl(262, 32%, 6%);
    background-image:
        radial-gradient(ellipse 120% 80% at 50% -20%, hsl(265 80% 48% / 0.42), transparent 58%),
        radial-gradient(ellipse 70% 55% at 0% 100%, hsl(280 70% 42% / 0.28), transparent 52%),
        radial-gradient(ellipse 60% 50% at 100% 30%, hsl(250 75% 52% / 0.22), transparent 48%),
        linear-gradient(165deg, hsl(265 30% 10%) 0%, hsl(262 35% 5%) 45%, hsl(258 32% 7%) 100%);
    background-attachment: fixed;
    color: var(--foreground);
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    font-weight: 600;
    font-size: 15px;
    padding: 1.25rem;
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: subpixel-antialiased;
}

.network-lines,
.particles {
    display: none;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
}

.site-hero {
    text-align: center;
    margin-bottom: 2rem;
    padding-top: 0.5rem;
}

.site-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--primary-glow);
    margin-bottom: 0.35rem;
}

.site-title {
    display: flex;
    align-items: baseline;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.35rem 0.7rem;
    line-height: 1;
    margin: 0;
}

.site-title-zip {
    display: inline-block;
    font-family: 'Instrument Serif', Georgia, 'Times New Roman', serif;
    font-size: clamp(3.05rem, 8vw, 4rem);
    font-weight: 400;
    letter-spacing: 0.03em;
    line-height: 0.92;
    color: #f5f3ff;
    background: linear-gradient(
        165deg,
        #ffffff 0%,
        #faf5ff 12%,
        #ede9fe 28%,
        #e9d5ff 48%,
        #c4b5fd 68%,
        #f3e8ff 88%,
        #ffffff 100%
    );
    background-size: 160% 160%;
    background-position: 48% 32%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 14px rgba(109, 40, 217, 0.2);
}

@media (max-width: 768px) {
    .site-title-zip {
        background: none;
        -webkit-background-clip: unset;
        background-clip: unset;
        -webkit-text-fill-color: #f5f3ff;
        color: #f5f3ff;
        text-shadow: 0 0 1px rgba(255, 255, 255, 0.35), 0 2px 12px rgba(109, 40, 217, 0.28);
    }
}

.site-title-brand {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    font-size: clamp(1.55rem, 3.9vw, 2.05rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: hsl(270 38% 62%);
}

.site-sub {
    margin-top: 0.5rem;
    color: var(--muted);
    font-size: 0.95rem;
    font-weight: 600;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    background: hsl(265 28% 12% / 0.88);
    border: 1px solid hsl(265 60% 60% / 0.18);
    backdrop-filter: blur(12px);
}

.top-bar-user {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
}

.top-bar-user strong {
    color: var(--primary-glow);
    font-weight: 700;
}

.card {
    background: hsl(265 26% 11% / 0.92);
    border: 1px solid hsl(265 55% 58% / 0.16);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    margin-bottom: 1.25rem;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--primary-glow), transparent);
    opacity: 0.85;
}

.card-header {
    background: hsl(265 24% 13% / 0.75);
    border-bottom: 1px solid hsl(265 50% 55% / 0.12);
    padding: 1.35rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

h3 {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    font-weight: 800;
    font-size: 1.45rem;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    color: var(--foreground);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

h3 i {
    color: var(--primary);
    font-size: 1.1rem;
}

h5 {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
}

p {
    color: var(--muted);
    font-weight: 600;
    margin-bottom: 1rem;
}

strong {
    color: var(--foreground);
    font-weight: 700;
}

label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.5rem;
    display: block;
}

label i {
    color: var(--primary);
    margin-right: 0.35rem;
}

.nav-tabs {
    background: hsl(265 26% 9%);
    border: none;
    border-bottom: 1px solid hsl(265 50% 55% / 0.12);
    padding: 0.35rem 0.5rem 0;
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.nav-tabs .nav-link {
    color: var(--muted);
    border: none;
    border-radius: 0.5rem 0.5rem 0 0;
    padding: 0.7rem 1.1rem;
    font-size: 0.88rem;
    font-weight: 700;
    transition: color 0.2s, background 0.2s;
}

.nav-tabs .nav-link:hover {
    color: var(--foreground);
    background: hsl(0 0% 100% / 0.03);
}

.nav-tabs .nav-link.active {
    background: var(--card);
    color: var(--primary-glow);
    box-shadow: inset 0 1px 0 hsl(265 89% 66% / 0.35);
}

.tab-content {
    background: var(--card);
    padding: 1.35rem 1.5rem 1.5rem;
}

textarea,
.form-control {
    background: hsl(265 22% 14%);
    color: var(--foreground);
    border: 1px solid hsl(265 45% 50% / 0.2);
    border-radius: calc(var(--radius) - 2px);
    padding: 0.9rem 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.86rem;
    font-weight: 600;
    transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus,
.form-control:focus {
    border-color: hsl(265 89% 66% / 0.45);
    box-shadow: 0 0 0 3px hsl(265 89% 66% / 0.12);
    outline: none;
    background: hsl(222 14% 9%);
}

.btn {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 0.65rem 1.15rem;
    border-radius: calc(var(--radius) - 2px);
    border: 1px solid hsl(0 0% 100% / 0.1);
    background: var(--card-hover);
    color: var(--foreground);
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.45;
    transform: none;
    cursor: not-allowed;
}

.btn-primary {
    border-color: var(--primary-border);
    color: var(--primary-glow);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
}

.btn-success,
#chk-start:not(:disabled) {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-glow) 100%);
    border: none;
    color: hsl(222, 16%, 5%);
}

.btn-success:hover,
#chk-start:not(:disabled):hover {
    box-shadow: var(--shadow-glow);
}

.btn-danger {
    border-color: hsl(0 72% 58% / 0.35);
    color: hsl(0, 85%, 72%);
}

.btn-warning {
    border-color: hsl(38 92% 55% / 0.35);
    color: hsl(38, 92%, 62%);
}

.btn-secondary {
    border-color: hsl(0 0% 100% / 0.1);
    color: var(--muted);
}

.buttons {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
}

.status-bar {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 0 0 1.25rem;
    padding: 0.9rem 1rem;
    border-radius: calc(var(--radius) - 2px);
    background: hsl(265 30% 14% / 0.5);
    border: 1px solid hsl(265 50% 55% / 0.14);
}

.status-item {
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--muted);
}

.status-item strong {
    color: var(--foreground);
}

.status-item.lives i { color: var(--success); }
.status-item.dies i { color: var(--danger); }
.status-item.errors i { color: var(--warning); }
.status-item.tested i { color: var(--info); }
.status-item.total i { color: var(--primary); }

.result-box {
    max-height: 320px;
    overflow-y: auto;
    padding: 1rem;
    background: hsl(265 28% 8%);
    border-radius: calc(var(--radius) - 2px);
    border: 1px solid hsl(0 0% 100% / 0.06);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.84rem;
    font-weight: 600;
    line-height: 1.75;
}

.result-box::-webkit-scrollbar {
    width: 8px;
}

.result-box::-webkit-scrollbar-thumb {
    background: hsl(0 0% 100% / 0.12);
    border-radius: 999px;
}

.badge {
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    border: 1px solid transparent;
}

.badge-success { background: hsl(152 70% 45% / 0.15); color: hsl(152, 70%, 58%); border-color: hsl(152 70% 45% / 0.25); }
.badge-danger { background: hsl(0 72% 58% / 0.15); color: hsl(0, 85%, 72%); border-color: hsl(0 72% 58% / 0.25); }
.badge-warning { background: hsl(38 92% 55% / 0.15); color: hsl(38, 92%, 62%); border-color: hsl(38 92% 55% / 0.25); }
.badge-info { background: var(--primary-soft); color: var(--primary-glow); border-color: var(--primary-border); }
.badge-secondary { background: hsl(0 0% 100% / 0.05); color: var(--muted); }

.user-info {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0 0;
}

.user-info-item {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--muted);
    padding: 0.45rem 0.7rem;
    border-radius: 999px;
    background: hsl(0 0% 100% / 0.03);
    border: 1px solid hsl(0 0% 100% / 0.06);
}

.user-info-item i {
    color: var(--primary);
}

.rental-timer-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.1rem;
    border-radius: calc(var(--radius) - 2px);
    padding: 0.55rem 0.8rem;
    background: var(--primary-soft);
    border-color: var(--primary-border);
}

.rental-countdown {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary-glow);
}

.rental-countdown.rental-warn { color: var(--warning); }
.rental-countdown.rental-danger { color: var(--danger); animation: pulse-rental 1s ease-in-out infinite; }
.rental-countdown.rental-expired { color: var(--danger); }

.rental-expires-label {
    font-size: 0.72rem;
    color: var(--muted);
}

@keyframes pulse-rental {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.api-selection {
    margin-top: 1.25rem;
    padding: 1rem;
    border-radius: calc(var(--radius) - 2px);
    background: hsl(0 0% 100% / 0.02);
    border: 1px solid hsl(0 0% 100% / 0.06);
}

.api-selection h5 {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.api-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.api-option {
    position: relative;
    padding: 0.55rem 0.9rem 0.55rem 2.1rem;
    border-radius: 999px;
    border: 1px solid hsl(0 0% 100% / 0.08);
    font-size: 0.82rem;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.api-option:hover {
    border-color: var(--primary-border);
    background: var(--primary-soft);
}

.checkmark {
    position: absolute;
    left: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid hsl(0 0% 100% / 0.15);
    background: transparent;
}

.api-option input:checked ~ .checkmark {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 12px hsl(265 89% 66% / 0.45);
}

.api-option input:checked ~ .checkmark:after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 7px;
    border: solid hsl(222, 16%, 5%);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.footer {
    text-align: center;
    margin-top: 2.5rem;
    padding: 1.25rem;
    color: var(--muted);
    font-size: 0.82rem;
    border-top: 1px solid hsl(0 0% 100% / 0.06);
}

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

.footer a:hover {
    text-decoration: underline;
}

.login-wrap {
    max-width: 420px;
    margin: 0 auto 2rem;
}

.login-card .card-header {
    text-align: center;
    padding-bottom: 0.5rem;
}

.login-card h3 {
    justify-content: center;
}

.alert-box {
    padding: 0.75rem 1rem;
    border-radius: calc(var(--radius) - 2px);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    border: 1px solid transparent;
}

.alert-box.error {
    background: hsl(0 72% 58% / 0.12);
    color: hsl(0, 85%, 75%);
    border-color: hsl(0 72% 58% / 0.25);
}

.alert-box.success {
    background: var(--primary-soft);
    color: var(--primary-glow);
    border-color: var(--primary-border);
}

.alert-box.info {
    background: hsl(0 0% 100% / 0.04);
    color: var(--muted);
    border-color: hsl(0 0% 100% / 0.08);
}

.form-group {
    margin-bottom: 1rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
    margin-top: 0.25rem;
}

#toast-container > .toast {
    background-image: none !important;
    font-family: 'Inter', sans-serif;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.toast-message {
    color: #fff !important;
}

.text-success { color: hsl(152, 70%, 58%) !important; }
.text-danger { color: hsl(0, 85%, 72%) !important; }
.text-warning { color: hsl(38, 92%, 62%) !important; }

.live-flash {
    animation: live-flash 1s ease-out;
}

@keyframes live-flash {
    0% { background-color: transparent; }
    50% { background-color: hsl(265 89% 66% / 0.12); }
    100% { background-color: transparent; }
}

.back-btn {
    display: none;
}

::selection {
    background: hsl(265 89% 66% / 0.25);
    color: var(--foreground);
}

@media (max-width: 768px) {
    body { padding: 0.85rem; }
    .top-bar { flex-direction: column; align-items: stretch; }
    .buttons { flex-direction: column; }
    .buttons .btn { width: 100%; justify-content: center; }
    .nav-tabs { overflow-x: auto; flex-wrap: nowrap; }
    .status-bar { flex-direction: column; gap: 0.5rem; }
}