/* BreadTime — Ada AI+ design system */

:root {
    --bt-purple: #6B3FA0;
    --bt-purple-dark: #4A2875;
    --bt-blue: #1A6BF5;
    --bt-blue-hover: #4D8DF7;
    --bt-green: #0D3D2A;
    --bt-dark: #1A1F2E;

    --bt-white: #FFFFFF;
    --bt-bg: #F8FAFC;
    --bt-surface: #FFFFFF;
    --bt-gray-bg: #F0F3F6;
    --bt-border: #C4CDD4;
    --bt-muted: #7A8A96;
    --bt-text: #1A1F2E;
    --bt-body-text: #5A6475;

    --bt-error: #9B1C1C;
    --bt-error-bg: rgba(155, 28, 28, 0.08);
    --bt-warning: #B45309;
    --bt-warning-bg: rgba(180, 83, 9, 0.08);
    --bt-success: #166534;
    --bt-success-bg: rgba(22, 101, 52, 0.08);
    --bt-info: #1A6BF5;
    --bt-info-bg: rgba(26, 107, 245, 0.08);

    --bt-next-bg: var(--bt-info-bg);
    --bt-next-border: var(--bt-blue);
    --bt-past-text: #A6B0BA;

    --bt-footer-bg: #0F1420;
}

body {
    background-color: var(--bt-bg);
    color: var(--bt-body-text);
    font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    font-weight: 400;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--bt-text);
}

/* Navbar */
.bt-navbar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bt-border);
    box-shadow: none;
    position: sticky;
    top: 0;
    z-index: 1030;
}
.bt-navbar .navbar-brand {
    color: var(--bt-text);
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    font-size: 1.15rem;
}
.bt-navbar .nav-link {
    color: var(--bt-body-text);
    font-weight: 500;
}
.bt-navbar .nav-link:hover {
    color: var(--bt-blue);
}

/* Ada AI+ brand mark */
.bt-brand-ada {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    color: var(--bt-dark);
}
.bt-brand-plus {
    color: var(--bt-blue);
}
.bt-brand-sep {
    color: var(--bt-border);
    margin: 0 .6rem;
    font-weight: 400;
}
.bt-brandmark {
    padding: 24px clamp(20px, 6vw, 48px) 0;
    font-size: 1.05rem;
}

/* Cards */
.bt-card {
    background: var(--bt-surface);
    border: 1px solid var(--bt-border);
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(26, 31, 46, 0.04);
}

/* Auth layout */
.bt-auth-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.bt-auth-card {
    max-width: 420px;
    width: 100%;
}
.bt-auth-logo {
    font-size: 3rem;
    filter: drop-shadow(0 0 32px rgba(107, 63, 160, 0.35));
}

/* Buttons */
.btn-bt-primary {
    background-color: var(--bt-blue);
    border-color: var(--bt-blue);
    color: var(--bt-white);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    transition: background-color 0.15s ease;
}
.btn-bt-primary:hover {
    background-color: var(--bt-blue-hover);
    border-color: var(--bt-blue-hover);
    color: var(--bt-white);
}

.btn-bt-secondary {
    background-color: var(--bt-purple);
    border-color: var(--bt-purple);
    color: var(--bt-white);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    transition: background-color 0.15s ease;
}
.btn-bt-secondary:hover {
    background-color: var(--bt-purple-dark);
    border-color: var(--bt-purple-dark);
    color: var(--bt-white);
}

.btn-bt-outline {
    background-color: transparent;
    border: 1px solid var(--bt-border);
    color: var(--bt-body-text);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    border-radius: 8px;
    transition: border-color 0.15s ease, color 0.15s ease;
}
.btn-bt-outline:hover {
    border-color: var(--bt-purple);
    color: var(--bt-purple);
}

.btn-bt-danger {
    background-color: transparent;
    border: 1px solid var(--bt-border);
    color: var(--bt-error);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    border-radius: 8px;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}
.btn-bt-danger:hover {
    background-color: var(--bt-error-bg);
    border-color: var(--bt-error);
    color: var(--bt-error);
}

/* Brand accent color for icons, previously bootstrap text-warning */
.text-bt-accent {
    color: var(--bt-blue) !important;
}

/* Tables */
.bt-table th {
    background-color: var(--bt-gray-bg);
    color: var(--bt-text);
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    border-bottom: 1px solid var(--bt-border);
}
.bt-table td {
    vertical-align: middle;
    border-color: var(--bt-border);
}

/* Next-up row */
.bt-row-next {
    background-color: var(--bt-next-bg) !important;
    border-left: 3px solid var(--bt-next-border);
}
.bt-row-next td:first-child {
    padding-left: 1.25rem;
}

/* Past rows */
.bt-row-past td {
    color: var(--bt-past-text);
}

/* Badge next */
.bt-badge-next {
    background-color: var(--bt-info-bg);
    color: var(--bt-blue);
    font-family: 'Space Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 0.35em 0.7em;
    border-radius: 6px;
    border: 1px solid rgba(26, 107, 245, 0.25);
}

/* Neutral tag (e.g. timezone) */
.bt-tag {
    background-color: var(--bt-gray-bg);
    color: var(--bt-body-text);
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    border-radius: 6px;
    padding: 0.3em 0.65em;
    border: 1px solid var(--bt-border);
}

/* OTP input */
.bt-otp-input {
    font-family: 'Space Mono', monospace;
    font-size: 2rem;
    letter-spacing: .5rem;
    text-align: center;
    max-width: 220px;
}

/* Page header */
.bt-page-header {
    border-bottom: 1px solid var(--bt-border);
    padding-bottom: .75rem;
    margin-bottom: 1.5rem;
}
.bt-page-header h2 {
    font-weight: 700;
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
}

/* Eyebrow labels */
.bt-eyebrow {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--bt-muted);
}

/* Form */
.bt-form-label {
    font-weight: 500;
    color: var(--bt-text);
}

.form-control, .form-select {
    border: 1px solid var(--bt-border);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.9rem;
    background-color: var(--bt-white);
}
.form-control:focus, .form-select:focus {
    border-color: var(--bt-purple);
    box-shadow: 0 0 0 0.2rem rgba(107, 63, 160, 0.15);
}
.form-control.is-invalid:focus, .form-select.is-invalid:focus {
    border-color: var(--bt-error);
    box-shadow: 0 0 0 0.2rem rgba(155, 28, 28, 0.15);
}

/* Status / alert messages */
.alert {
    border-radius: 8px;
    border: none;
    border-left: 3px solid transparent;
    font-family: 'Space Grotesk', sans-serif;
}
.alert-danger {
    background-color: var(--bt-error-bg);
    color: var(--bt-error);
    border-left-color: var(--bt-error);
}
.alert-success {
    background-color: var(--bt-success-bg);
    color: var(--bt-success);
    border-left-color: var(--bt-success);
}
.alert-warning {
    background-color: var(--bt-warning-bg);
    color: var(--bt-warning);
    border-left-color: var(--bt-warning);
}
.alert-info {
    background-color: var(--bt-info-bg);
    color: var(--bt-info);
    border-left-color: var(--bt-info);
}
.invalid-feedback {
    color: var(--bt-error);
}

/* Footer */
.bt-footer {
    background-color: var(--bt-footer-bg);
    padding: 28px clamp(20px, 6vw, 80px);
    text-align: center;
    margin-top: auto;
}
.bt-footer-text {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.02em;
}
.bt-footer .bt-brand-ada {
    color: rgba(255, 255, 255, 0.85);
}