/* KlassAI — Global styles */

:root {
    --klassai-primary: #6f42c1;
    --klassai-primary-rgb: 111, 66, 193;
    --klassai-secondary: #0dcaf0;
    --klassai-accent: #ffc107;
    --klassai-dark: #1a1d23;
    --klassai-darker: #12141a;
}

/* Landing page hero */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--klassai-darker) 0%, var(--klassai-dark) 100%);
}

.hero-logo {
    max-width: 200px;
    border-radius: 1rem;
    box-shadow: 0 0 40px rgba(var(--klassai-primary-rgb), 0.3);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--klassai-primary), var(--klassai-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #adb5bd;
}

/* Feature cards */
.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    padding: 2rem;
    transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--klassai-primary-rgb), 0.4);
}

.feature-icon {
    font-size: 2rem;
    color: var(--klassai-primary);
    margin-bottom: 1rem;
}

/* Auth modals */
.modal-content {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-form .form-control {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    color: #e9ecef;
}

.auth-form .form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--klassai-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--klassai-primary-rgb), 0.25);
    color: #fff;
}

.auth-form .form-label {
    color: #adb5bd;
    font-size: 0.875rem;
}

.btn-klassai {
    background: linear-gradient(135deg, var(--klassai-primary), #8b5cf6);
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    transition: opacity 0.2s, transform 0.1s;
}

.btn-klassai:hover {
    opacity: 0.9;
    color: #fff;
}

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

/* Recovery key display */
.recovery-key-display {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    background: rgba(255, 193, 7, 0.1);
    border: 1px dashed var(--klassai-accent);
    border-radius: 0.5rem;
    padding: 1rem;
    word-break: break-all;
    user-select: all;
}

/* Loading spinner */
.spinner-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
}

/* Encrypted data indicator */
.encrypted-badge {
    font-size: 0.7rem;
    vertical-align: middle;
    opacity: 0.6;
}

/* Auto-resize textareas for notes */
.auto-resize {
    overflow: hidden;
    resize: none;
}