/* ============================================================
   app.css — CSS Variables, Typography, Reset, Utilities
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --primary:        #2b98ab;
    --primary-light:  #3ab4c9;
    --primary-dark:   #1e7080;
    --primary-50:     #f0fafc;
    --primary-100:    #d0eef4;
    --primary-200:    #a1dde9;
    --accent:         #C8860A;
    --accent-light:   #E6A020;
    --accent-dark:    #9C6808;
    --accent-50:      #FDF8EE;
    --accent-100:     #F9EDCA;
    --secondary:      #1A5276;
    --secondary-50:   #EAF2FB;
    --danger:         #C0392B;
    --danger-50:      #FDEDEC;
    --warning:        #D68910;
    --warning-50:     #FEF9E7;
    --info:           #1A6BA0;
    --info-50:        #EAF4FB;
    --white:          #FFFFFF;
    --gray-50:        #F8FAFB;
    --gray-100:       #F1F4F6;
    --gray-200:       #E2E8ED;
    --gray-300:       #CBD5DE;
    --gray-400:       #9BAAB6;
    --gray-500:       #6B7D8C;
    --gray-600:       #4A5A67;
    --gray-700:       #334352;
    --gray-800:       #1E2D3D;
    --gray-900:       #0F1923;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body:    'Plus Jakarta Sans', -apple-system, sans-serif;
    --text-xs: 0.75rem; --text-sm: 0.875rem; --text-base: 1rem;
    --text-lg: 1.125rem; --text-xl: 1.25rem; --text-2xl: 1.5rem;
    --text-3xl: 1.875rem; --text-4xl: 2.25rem;
    --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
    --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
    --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem; --space-16: 4rem;
    --radius-sm: 0.375rem; --radius: 0.5rem; --radius-md: 0.75rem;
    --radius-lg: 1rem; --radius-xl: 1.5rem; --radius-full: 9999px;
    --shadow-xs: 0 1px 2px rgba(0,0,0,.06);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow:    0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
    --shadow-md: 0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);
    --shadow-lg: 0 20px 25px rgba(0,0,0,.10), 0 10px 10px rgba(0,0,0,.04);
    --shadow-xl: 0 25px 50px rgba(0,0,0,.12);
    --shadow-primary: 0 4px 15px rgba(43,152,171,.28);
    --shadow-accent:  0 4px 15px rgba(200,134,10,.25);
    --transition-fast: 150ms ease; --transition: 250ms ease; --transition-slow: 400ms ease;
    --z-dropdown: 100; --z-sticky: 200; --z-fixed: 300; --z-modal: 400; --z-toast: 500;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font-body); font-size: var(--text-base); color: var(--gray-800); background: var(--gray-50); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-display); font-weight: 600; line-height: 1.25; color: var(--gray-900); }
h1 { font-size: var(--text-4xl); } h2 { font-size: var(--text-3xl); } h3 { font-size: var(--text-2xl); } h4 { font-size: var(--text-xl); } h5 { font-size: var(--text-lg); }
a { color: var(--primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }
::selection { background: var(--primary-100); color: var(--primary-dark); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-sm); }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6); }
.container--narrow { max-width: 900px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.text-primary { color: var(--primary); } .text-accent { color: var(--accent); } .text-muted { color: var(--gray-500); }
.text-danger { color: var(--danger); } .text-center { text-align: center; }
.fw-medium { font-weight: 500; } .fw-semibold { font-weight: 600; } .fw-bold { font-weight: 700; }
.d-flex { display: flex; } .align-center { align-items: center; }
.gap-2 { gap: var(--space-2); } .gap-3 { gap: var(--space-3); } .gap-4 { gap: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); } .mb-6 { margin-bottom: var(--space-6); } .mt-4 { margin-top: var(--space-4); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn   { from { opacity: 0; } to { opacity: 1; } }
@keyframes spin     { to { transform: rotate(360deg); } }
@keyframes shimmer  { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.animate-fade-in-up { animation: fadeInUp 0.5s ease both; }
.animate-fade-in    { animation: fadeIn 0.4s ease both; }
.alert { padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); border: 1px solid transparent; font-size: var(--text-sm); font-weight: 500; display: flex; align-items: flex-start; gap: var(--space-3); margin-bottom: var(--space-4); animation: fadeInUp 0.3s ease; }
.alert--success { background: var(--primary-50); border-color: var(--primary-200); color: var(--primary-dark); }
.alert--danger  { background: var(--danger-50);  border-color: #F1948A; color: var(--danger); }
.alert--warning { background: var(--warning-50); border-color: #F9E79F; color: var(--warning); }
.alert--info    { background: var(--info-50);    border-color: #AED6F1; color: var(--info); }
.alert__icon    { flex-shrink: 0; margin-top: 1px; }
@media (max-width: 991px) { h1 { font-size: var(--text-3xl); } h2 { font-size: var(--text-2xl); } .container { padding: 0 var(--space-4); } }
@media (max-width: 575px)  { h1 { font-size: var(--text-2xl); } h2 { font-size: var(--text-xl); } }

/* ============================================================
   BOTANICAL + MENTAWAI BACKGROUND
   ============================================================ */

.botanical-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.leaf { position: absolute; opacity: 0; }
.leaf--1 { top: -80px; left: -40px; width: 220px; color: rgba(43,152,171,0.08); opacity: 1; animation: leafSway1 8s ease-in-out infinite; transform-origin: bottom center; }
.leaf--2 { top: -60px; right: -30px; width: 180px; color: rgba(43,152,171,0.07); opacity: 1; animation: leafSway2 10s ease-in-out infinite; transform-origin: bottom center; transform: scaleX(-1); }
.leaf--3 { bottom: 10%; left: -30px; width: 160px; color: rgba(43,152,171,0.06); opacity: 1; animation: leafSway1 12s ease-in-out infinite reverse; transform-origin: bottom right; transform: rotate(30deg); }
.leaf--4 { bottom: 5%; right: -50px; width: 200px; color: rgba(43,152,171,0.07); opacity: 1; animation: leafSway2 9s ease-in-out infinite; transform-origin: bottom left; transform: scaleX(-1) rotate(-20deg); }
.leaf--5 { top: 40%; left: 2%; width: 100px; color: rgba(43,152,171,0.05); opacity: 1; animation: leafSway1 14s ease-in-out infinite; transform-origin: bottom center; transform: rotate(15deg); }
.leaf--6 { top: 18%; left: -20px; width: 280px; color: rgba(43,152,171,0.07); opacity: 1; animation: leafSway2 11s ease-in-out infinite; transform-origin: left center; transform: rotate(-5deg); }
.leaf--7 { top: 55%; right: -20px; width: 280px; color: rgba(43,152,171,0.06); opacity: 1; animation: leafSway1 13s ease-in-out infinite reverse; transform-origin: right center; transform: rotate(5deg); }

/* ── Elemen Mentawai — FIXED ── */
.mtw-palm {
    position: fixed !important;
    top: 8%;
    right: 3%;
    width: 130px;
    opacity: 0.22;
    color: #2b98ab;
    animation: palmSway 7s ease-in-out infinite;
    transform-origin: bottom center;
    display: block !important;
}

.mtw-surfer {
    position: fixed !important;
    bottom: 140px;
    right: 5%;
    width: 200px;
    opacity: 0.22;
    color: #2b98ab;
    animation: surferBob 6s ease-in-out infinite;
    display: block !important;
}

.mtw-boat {
    position: fixed !important;
    top: 42%;
    left: 2%;
    width: 220px;
    opacity: 0.20;
    color: #2b98ab;
    animation: boatDrift 16s ease-in-out infinite;
    display: block !important;
}

.mtw-island {
    position: fixed !important;
    bottom: 50px;
    left: 2%;
    width: 340px;
    opacity: 0.20;
    color: #2b98ab;
    animation: islandFloat 20s ease-in-out infinite;
    display: block !important;
}

.mtw-star {
    position: fixed !important;
    top: 32%;
    right: 2%;
    width: 65px;
    opacity: 0.20;
    color: #2b98ab;
    animation: starSpin 20s linear infinite;
    display: block !important;
}

.mtw-wave {
    position: fixed !important;
    bottom: 0;
    left: 0;
    width: 200%;
    opacity: 0.20;
    color: #2b98ab;
    animation: waveSlide 18s linear infinite;
    display: block !important;
}

.mtw-wave--2 {
    bottom: 18px !important;
    opacity: 0.13 !important;
    animation: waveSlide 24s linear infinite reverse !important;
}

/* ── Animasi ── */
@keyframes leafSway1 { 0% { transform: rotate(0deg); } 25% { transform: rotate(3deg); } 75% { transform: rotate(-2deg); } 100% { transform: rotate(0deg); } }
@keyframes leafSway2 { 0% { transform: scaleX(-1) rotate(0deg); } 30% { transform: scaleX(-1) rotate(-3deg); } 70% { transform: scaleX(-1) rotate(2deg); } 100% { transform: scaleX(-1) rotate(0deg); } }
@keyframes waveSlide { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes islandFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes surferBob { 0%,100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-10px) rotate(2deg); } }
@keyframes boatDrift { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-6px) rotate(1deg); } }
@keyframes palmSway { 0%,100% { transform: rotate(0deg); } 30% { transform: rotate(4deg); } 70% { transform: rotate(-3deg); } }
@keyframes starSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.header, main, .footer, #pageSpinner, .disclaimer-bar { position: relative; z-index: 1; }

@media (max-width: 768px) {
    .leaf--3, .leaf--5, .leaf--6, .leaf--7 { display: none; }
    .leaf--1 { width: 160px; }
    .leaf--2 { width: 140px; }
    .leaf--4 { width: 150px; }
    .mtw-island { display: none !important; }
    .mtw-boat   { display: none !important; }
    .mtw-star   { display: none !important; }
    .mtw-surfer { width: 130px; opacity: 0.15; }
    .mtw-palm   { width: 90px; }
}