/**
 * ==============================================================================
 * AZ LEARN WEB PORTAL — CHROME & SHARED COMPONENTS (css/chrome.css)
 * ==============================================================================
 */

/* --- Top Navigation Bar --- */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(18, 16, 14, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--hairline);
    padding: 0.75rem 1.5rem;
    transition: background 0.2s ease, border-color 0.2s ease;
}

[data-theme="light"] .site-nav {
    background: rgba(243, 238, 228, 0.88);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--ink);
}

.brand-logo-img {
    height: 34px;
    width: auto;
    object-fit: contain;
}

.brand-text-wrap {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--ink);
    line-height: 1.1;
}

.brand-subtitle {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--foil-bright);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.nav-item a {
    color: var(--ink-2);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background 0.15s ease;
}

.nav-item a:hover {
    color: var(--ink);
    background: var(--surface-2);
}

/* Nav Action Button (e.g. Staff Portal) */
.btn-nav-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-2);
    border: 1px solid var(--hairline-2);
    color: var(--ink) !important;
    font-size: 0.88rem !important;
    font-weight: 600 !important;
    padding: 0.45rem 1rem !important;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.btn-nav-action:hover {
    background: var(--surface-3);
    border-color: var(--foil);
    color: var(--foil-bright) !important;
    transform: translateY(-1px);
}

/* --- Buttons System --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.92rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
    white-space: nowrap;
    line-height: 1.3;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--foil);
    color: #FFFFFF !important;
    border-color: var(--foil);
    box-shadow: 0 2px 8px rgba(234, 88, 12, 0.35);
}

.btn-primary:hover {
    background: var(--foil-hover);
    border-color: var(--foil-hover);
    box-shadow: 0 4px 14px rgba(234, 88, 12, 0.45);
    color: #FFFFFF !important;
}

.btn-secondary {
    background: var(--surface-2);
    color: var(--ink) !important;
    border-color: var(--hairline-2);
}

.btn-secondary:hover {
    background: var(--surface-3);
    border-color: var(--hairline-3);
    color: var(--ink) !important;
}

.btn-danger {
    background: var(--error-bg);
    color: var(--error) !important;
    border-color: var(--error-border);
}

.btn-danger:hover {
    background: var(--error);
    color: #FFFFFF !important;
    border-color: var(--error);
}

.btn-success {
    background: var(--success-bg);
    color: var(--success) !important;
    border-color: var(--success-border);
}

.btn-success:hover {
    background: var(--success);
    color: #FFFFFF !important;
    border-color: var(--success);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
}

/* --- Form Controls --- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.2rem;
    text-align: left;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-2);
    letter-spacing: 0.01em;
}

.form-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.7rem 0.95rem;
    background: var(--surface-2);
    border: 1px solid var(--hairline-2);
    border-radius: var(--radius-md);
    color: var(--ink);
    font-size: 0.95rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--foil);
    background: var(--surface-1);
    box-shadow: 0 0 0 3px var(--foil-dim);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--ink-3);
}

.input-icon-btn {
    position: absolute;
    right: 0.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-3);
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease;
}

.input-icon-btn:hover {
    color: var(--ink);
}

/* --- Status Badges & Pills --- */
.badge-role {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.badge-admin {
    background: var(--warn-bg);
    color: var(--warn);
    border: 1px solid var(--warn-border);
}

.badge-tutor {
    background: var(--tutor-purple-bg);
    color: var(--tutor-purple);
    border: 1px solid var(--tutor-purple-border);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.status-inactive,
.status-revoked {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid var(--error-border);
}

.status-pending {
    background: var(--warn-bg);
    color: var(--warn);
    border: 1px solid var(--warn-border);
}

.status-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    margin-right: 0.35rem;
    vertical-align: middle;
    flex-shrink: 0;
}

.status-dot-active {
    background-color: var(--success, #10b981);
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.4);
}

.status-dot-paused {
    background-color: var(--warn, #f59e0b);
    box-shadow: 0 0 6px rgba(245, 158, 11, 0.4);
}

.status-dot-redeemed {
    background-color: var(--tutor-purple, #a855f7);
    box-shadow: 0 0 6px rgba(168, 85, 247, 0.4);
}

.status-dot-expired {
    background-color: var(--error, #ef4444);
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
}

.icon-inline {
    display: inline-block;
    vertical-align: -2px;
    flex-shrink: 0;
}

/* --- Alert Banner --- */
.alert-banner {
    display: none;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error);
}

.alert-banner.active,
.alert-banner:not(:empty):not([style*="display: none"]) {
    display: flex;
}

/* --- Modal Overlays & Sheets --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.modal-overlay.active,
.modal-overlay[style*="display: flex"] {
    display: flex;
    opacity: 1;
}

.modal-card {
    background: var(--surface-1);
    border: 1px solid var(--hairline-2);
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 520px;
    width: 100%;
    box-shadow: var(--shadow-elevated);
    text-align: center;
    transform: scale(0.96);
    transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.modal-overlay.active .modal-card,
.modal-overlay[style*="display: flex"] .modal-card {
    transform: scale(1);
}

.modal-icon-bubble {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.25rem;
    border-radius: var(--radius-full);
    background: var(--foil-dim);
    color: var(--foil-bright);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(234, 88, 12, 0.3);
}

.modal-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.6rem;
}

.modal-desc {
    font-size: 0.92rem;
    color: var(--ink-2);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}