/* ==========================================================================
   Sterke Stapjes — custom styles & animations
   Layers on top of Tailwind (CDN). Keeps everything light and tasteful.
   ========================================================================== */

:root {
    --water-500: #06b6d4;
    --water-600: #0891b2;
    --water-700: #0e7490;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

/* Respect users who prefer reduced motion ---------------------------------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .reveal { opacity: 1 !important; transform: none !important; }
}

/* ==========================================================================
   Navigation
   ========================================================================== */
#navbar {
    background: transparent;
}

/* Subtle glassmorphism once scrolled */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 1px 20px rgba(15, 23, 42, 0.04);
}

.nav-link {
    position: relative;
    transition: color 0.2s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    height: 2px;
    width: 100%;
    background: var(--water-500);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.nav-link:hover {
    color: #0f172a;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.mobile-link {
    display: block;
    padding: 0.6rem 0.5rem;
    border-radius: 0.75rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-link:hover {
    background: #f1f5f9;
    color: #0f172a;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.35rem;
    border-radius: 0.85rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
    background: var(--water-600);
    box-shadow: 0 6px 16px rgba(8, 145, 178, 0.25);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
    will-change: transform;
}

.btn-accent:hover {
    background: var(--water-700);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(8, 145, 178, 0.32);
}

.btn-accent:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.28);
}

.btn-lg {
    padding: 0.85rem 1.9rem;
    font-size: 1.05rem;
    border-radius: 1rem;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 1.25rem;
    padding: 1.75rem;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 30px rgba(15, 23, 42, 0.05);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(6, 182, 212, 0.25);
    box-shadow: 0 4px 8px rgba(15, 23, 42, 0.05), 0 20px 44px rgba(15, 23, 42, 0.09);
}

@media (min-width: 640px) {
    .card { padding: 2rem; }
}

/* ==========================================================================
   Links & social
   ========================================================================== */
.link-accent {
    color: var(--water-700);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.link-accent:hover {
    color: var(--water-500);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.75rem;
    width: 2.75rem;
    border-radius: 0.9rem;
    color: var(--water-700);
    background: var(--water-50, #ecfeff);
    font-size: 1.05rem;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.social-icon:hover {
    transform: translateY(-3px);
    background: var(--water-600);
    color: #fff;
}

/* ==========================================================================
   Tabs (Tarieven)
   ========================================================================== */
.tab-btn {
    padding: 0.5rem 0.9rem;
    margin-bottom: -1px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #64748b;
    border-bottom: 2px solid transparent;
    border-radius: 0.5rem 0.5rem 0 0;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.tab-btn:hover {
    color: #0f172a;
    background: rgba(15, 23, 42, 0.03);
}

.tab-btn.is-active {
    color: var(--water-700);
    border-bottom-color: var(--water-500);
}

.tab-panel {
    animation: fadeIn 0.35s ease both;
}

/* ==========================================================================
   Animations
   ========================================================================== */

/* Fade / rise on scroll */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Floating hero image */
.hero-float {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Map iframe sits flush */
iframe {
    display: block;
}