/* Apple-inspired UI — light mode only */
:root {
    --bg: #f5f5f7;
    --card: #ffffff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --border: #e5e5ea;
    --accent: #111111; /* Neutral dark to avoid blue buttons */
    --accent-soft: #f1f1f3;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
    --radius: 16px;
    --radius-lg: 20px;
}

body {
    font-family: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* Navbar */
.apple-nav {
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    backdrop-filter: blur(12px);
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, #0a84ff 0%, #4ea2ff 100%);
    color: #fff;
    font-weight: 700;
    letter-spacing: -0.02em;
    font-size: 1rem;
    box-shadow: 0 8px 18px rgba(10, 132, 255, 0.25);
}

.navbar-brand {
    color: var(--text) !important;
    letter-spacing: 0.2px;
}

.nav-link {
    color: var(--muted) !important;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link:focus {
    color: var(--text) !important;
}

/* Buttons */
.btn,
.cta-btn,
.btn-primary {
    border-radius: 12px;
    padding: 12px 18px;
    font-weight: 600;
    border: none;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.cta-btn:hover,
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.16);
}

.apple-primary {
    background: var(--accent);
    color: #fff !important;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.btn-outline-primary,
.btn-outline-primary:hover,
.btn-outline-primary:focus {
    border: 1px solid var(--accent);
    color: var(--accent) !important;
    background: #fff;
    box-shadow: none;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, #f7f8fa 0%, #f2f3f5 100%);
    color: var(--text);
    padding: 80px 0 60px;
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--muted);
    margin-bottom: 30px;
}

/* Cards */
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: var(--card);
}

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

.card-title {
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* Stats */
.stats-section {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 0;
    margin: 48px auto;
    box-shadow: 0 12px 30px rgba(0,0,0,0.05);
}

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

.stat-number {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text);
}

.stat-label {
    color: var(--muted);
}

/* Benefit cards */
.benefit-card {
    text-align: center;
    padding: 28px 18px;
    border-radius: var(--radius-lg);
}

.benefit-icon {
    font-size: 2.4rem;
    color: var(--accent);
    margin-bottom: 14px;
}

/* Tags */
.course-tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    background: var(--accent-soft);
    color: var(--accent);
    margin-right: 6px;
    margin-bottom: 6px;
}

.tag-beginner, .tag-intermediate, .tag-duration {
    background: var(--accent-soft);
    color: var(--accent);
}

/* Search */
.search-bar input {
    border-radius: 14px;
    border: 1px solid var(--border);
    padding: 12px 16px;
    background: #fff;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.04);
}

.search-bar input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(10,132,255,0.15);
}

/* Accordion */
.accordion-button {
    border-radius: 12px !important;
    background: #f7f7f8;
    font-weight: 600;
    color: var(--text);
}

.accordion-button:not(.collapsed) {
    color: var(--accent);
    background: var(--accent-soft);
    box-shadow: none;
}

/* Progress */
.progress {
    height: 14px;
    border-radius: 999px;
    background: #ececed;
}

.progress-bar {
    background: linear-gradient(90deg, var(--accent) 0%, #4ea2ff 100%);
    border-radius: 999px;
}

/* Footer */
footer {
    background: #ffffff;
    border-top: 1px solid var(--border);
    color: var(--text);
    padding: 50px 0 20px;
    margin-top: 60px;
}

footer h5 {
    color: var(--text);
    margin-bottom: 14px;
}

footer a {
    color: var(--muted);
}

footer a:hover {
    color: var(--text);
}

.social-icons a {
    font-size: 1.3rem;
    margin-right: 12px;
    color: var(--muted);
}

.social-icons a:hover {
    color: var(--text);
}

/* Questionnaire */
.question-card {
    border-radius: var(--radius-lg);
}

.option-item {
    border: 1px solid var(--border);
    background: #fff;
}

.option-item:hover {
    border-color: var(--accent);
    background: #f9fbff;
}

.option-item input:checked + label {
    color: var(--accent);
}

/* Results */
.badge {
    border-radius: 10px;
}

.cta-panel {
    background: #f7f8fa;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 24px rgba(0,0,0,0.06);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.1rem; }
    .hero p { font-size: 1.05rem; }
    .stat-number { font-size: 2rem; }
    .cta-btn { width: 100%; margin-bottom: 10px; }
}