:root {
    --bg-primary: #050505;
    --bg-secondary: #0d0f12;
    --bg-tertiary: #171a1f;
    --text-primary: #f8fafc;
    --text-secondary: #a1a1aa;
    --accent: #22d3ee;
    --accent-strong: #06b6d4;
    --success: #34d399;
    --error: #f87171;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --radius-md: 14px;
    --radius-lg: 22px;
    --shadow-lg: 0 30px 60px rgba(0, 0, 0, 0.45);
    --font-sans: "Manrope", sans-serif;
    --font-display: "Space Grotesk", sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(900px 600px at 10% -10%, rgba(34, 211, 238, 0.2), transparent 60%),
        radial-gradient(800px 500px at 110% 10%, rgba(16, 185, 129, 0.16), transparent 60%);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--accent-strong);
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Utilities */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.shell {
    max-width: 1120px;
    margin: 0 auto;
    padding: 2.5rem 1.75rem 4rem;
    width: 100%;
}

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

.text-right {
    text-align: right;
}

.text-success {
    color: var(--success);
}

.text-error {
    color: var(--error);
}

.text-secondary {
    color: var(--text-secondary);
}

.text-emphasis {
    color: var(--text-primary);
    font-weight: 600;
}

.mt-4 {
    margin-top: 1.5rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.w-100 {
    width: 100%;
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

/* Layout */
.page {
    position: relative;
    display: flex;
    flex-direction: column;
}

.main {
    flex: 1;
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    align-items: start;
}

.hero-copy {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.auth-header {
    margin-bottom: 2rem;
}

.auth-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 3vw, 3.2rem);
    font-weight: 600;
    line-height: 1.1;
    background: linear-gradient(120deg, #f8fafc 10%, #7dd3fc 65%, #22d3ee 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 36ch;
}

.hero-steps {
    display: grid;
    gap: 1rem;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
    align-items: center;
    background: rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    padding: 0.9rem 1rem;
}

.step-number {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #0c0a09;
    background: linear-gradient(135deg, #22d3ee, #34d399);
}

.step-title {
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.step-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Components */
.card,
.panel {
    background: linear-gradient(150deg, rgba(15, 23, 42, 0.8), rgba(12, 15, 20, 0.9));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(14px);
}

.panel-narrow {
    max-width: 420px;
    margin: 0 auto;
}

.panel-wide {
    max-width: 560px;
    margin: 0 auto;
}

.panel-muted {
    background: rgba(15, 23, 42, 0.45);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    font-size: 0.98rem;
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #22d3ee, #34d399);
    color: #0b0f12;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(34, 211, 238, 0.25);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.btn-success {
    background-color: var(--success);
    color: #042a1b;
}

.btn-icon {
    width: 2.6rem;
    height: 2.6rem;
    padding: 0;
    border-radius: 14px;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.form-group {
    margin-bottom: 1.4rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: rgba(6, 10, 16, 0.7);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
}

.input-row {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.code-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(34, 211, 238, 0.12);
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* Status */
.status-line {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
}

.spinner {
    width: 1.4rem;
    height: 1.4rem;
    border: 3px solid rgba(34, 211, 238, 0.3);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* QR Container */
.qr-container {
    background: #ffffff;
    padding: 1rem;
    border-radius: 18px;
    display: inline-block;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.qr-caption {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.link-preview {
    word-break: break-all;
    font-size: 0.85rem;
}

.verification-block {
    display: grid;
    gap: 0.6rem;
    justify-items: center;
}

.timer-display {
    background: rgba(15, 23, 42, 0.6);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.timer-label {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.timer-value {
    font-family: "JetBrains Mono", monospace;
    font-weight: bold;
    color: var(--accent);
}

.warning-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 4, 5, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.warning-content {
    text-align: center;
}

.timer-banner {
    text-align: right;
    color: var(--text-secondary);
    font-family: "JetBrains Mono", monospace;
}

/* Blazor Error UI */
#blazor-error-ui {
    background: #ef4444;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: white;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

@media (max-width: 720px) {
    .shell {
        padding: 2rem 1.25rem 3rem;
    }

    .card,
    .panel {
        padding: 1.5rem;
    }

    .input-row {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-icon {
        width: 100%;
    }
}