/* Apple-inspired Design System */

:root {
    /* Apple Colors */
    --apple-blue: #0b7a16;
    --apple-gray: #86868b;
    --apple-light-gray: #f5f5f7;
    --apple-dark: #1d1d1f;
    --apple-card-bg: #fbfbfd;
    --apple-border: #d2d2d7;
    --apple-shadow: rgba(0, 0, 0, 0.08);
    --apple-hover: #e8e8ed;
}

/* Typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--apple-dark);
    background-color: var(--apple-light-gray);
}

/* Navbar - Apple Style */
.navbar-dark {
    background-color: var(--apple-dark) !important;
}

.navbar-brand {
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Buttons */
.btn-primary {
    background-color: var(--apple-blue);
    border: none;
    border-radius: 980px;
    padding: 12px 24px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #0ba01a;
    transform: scale(1.02);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--apple-border);
    color: var(--apple-dark);
    border-radius: 980px;
    padding: 12px 24px;
    font-weight: 500;
}

.btn-secondary:hover {
    background-color: var(--apple-hover);
    color: var(--apple-dark);
}

.btn-sm {
    border-radius: 980px;
    padding: 6px 16px;
    font-size: 0.875rem;
}

/* Cards */
.card {
    border: none;
    border-radius: 18px;
    background-color: white;
    box-shadow: 0 4px 20px var(--apple-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--apple-shadow);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--apple-border);
    padding: 1.5rem;
    font-weight: 600;
}

.survey-card {
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--apple-border);
}

.survey-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--apple-shadow);
}

/* Form Controls */
.form-control, .form-select {
    border: 1px solid var(--apple-border);
    border-radius: 12px;
    padding: 12px 16px;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

.form-label {
    font-weight: 500;
    color: var(--apple-dark);
    margin-bottom: 8px;
}

/* Table */
.table {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--apple-light-gray);
    border-bottom: 2px solid var(--apple-border);
    font-weight: 600;
    color: var(--apple-dark);
    padding: 16px;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--apple-light-gray);
}

/* Badges */
.badge {
    border-radius: 6px;
    padding: 4px 10px;
    font-weight: 500;
}

.bg-success {
    background-color: #34c759 !important;
}

.bg-info {
    background-color: var(--apple-blue) !important;
}

.bg-secondary {
    background-color: var(--apple-gray) !important;
}

/* Alert */
.alert {
    border: none;
    border-radius: 12px;
    padding: 16px 20px;
}

.alert-success {
    background-color: #d1f4e0;
    color: #0d5e2b;
}

.alert-danger {
    background-color: #ffe5e5;
    color: #c41e3a;
}

.alert-light {
    background-color: var(--apple-light-gray);
    border: 1px solid var(--apple-border);
}

/* Choice Options (Survey) */
.choice-option {
    background-color: white;
    border: 2px solid var(--apple-border);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.choice-option:hover {
    border-color: var(--apple-blue);
    background-color: var(--apple-light-gray);
}

.choice-option.selected {
    background-color: var(--apple-blue);
    border-color: var(--apple-blue);
    color: white;
}

/* Canvas Container */
.canvas-container {
    border: 2px solid var(--apple-border);
    border-radius: 16px;
    background: white;
}

.canvas-toolbar {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

/* List Group */
.list-group-item {
    border: 1px solid var(--apple-border);
    border-radius: 12px;
    margin-bottom: 12px;
}

/* Input Group */
.input-group {
    border-radius: 12px;
    overflow: hidden;
}

/* Container */
.container {
    max-width: 1200px;
}

/* Minimal spacing adjustments */
h1, h2, h3, h4, h5 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Question Card specific */
.question-card {
    padding: 2rem;
    margin-bottom: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 2px 12px var(--apple-shadow);
}

/* Login page specific */
.min-vh-100 {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar (webkit) */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--apple-light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--apple-gray);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--apple-dark);
}