/* =====================================================================
 * Sirandah OS — Tropical Ocean Design System
 * Versi: 1.0.0 — 2026-04-16
 * Palette: Deep Ocean + Sea Foam + Tropical Sand + White Beach
 * =====================================================================
 */

/* ---------- 1. ROOT DESIGN TOKENS ---------- */
:root {
    /* Primary — Deep Ocean */
    --so-ocean:        #0369A1;   /* sky-700 */
    --so-ocean-dark:   #075985;   /* sky-800 */
    --so-ocean-light:  #0EA5E9;   /* sky-500 */
    --so-ocean-50:     #F0F9FF;
    --so-ocean-100:    #E0F2FE;

    /* Secondary — Sea Foam (accent cool) */
    --so-foam:         #06B6D4;   /* cyan-500 */
    --so-foam-light:   #67E8F9;   /* cyan-300 */
    --so-foam-50:      #ECFEFF;

    /* Accent — Tropical Sand / Gold */
    --so-sand:         #F59E0B;   /* amber-500 */
    --so-sand-dark:    #D97706;   /* amber-600 */
    --so-sand-light:   #FDE68A;   /* amber-200 */
    --so-sand-50:      #FFFBEB;

    /* Status */
    --so-success:      #059669;   /* emerald-600 */
    --so-success-light:#D1FAE5;
    --so-warning:      #F59E0B;
    --so-danger:       #DC2626;   /* red-600 */
    --so-danger-light: #FEE2E2;
    --so-coral:        #F87171;   /* red-400 — softer danger accent */

    /* Neutral / Ink */
    --so-ink:          #0F172A;   /* slate-900 */
    --so-ink-soft:     #1E293B;   /* slate-800 */
    --so-muted:        #64748B;   /* slate-500 */
    --so-line:         #E2E8F0;   /* slate-200 */
    --so-surface:      #FFFFFF;
    --so-bg:           #F8FAFC;   /* slate-50 */
    --so-bg-alt:       #F1F5F9;   /* slate-100 */

    /* Radii */
    --so-radius-sm:    0.5rem;    /* 8px */
    --so-radius-md:    0.75rem;   /* 12px */
    --so-radius-lg:    1rem;      /* 16px */
    --so-radius-xl:    1.25rem;   /* 20px */
    --so-radius-2xl:   1.5rem;    /* 24px */

    /* Shadows */
    --so-shadow-sm:    0 1px 2px rgba(15, 23, 42, 0.05);
    --so-shadow-md:    0 4px 12px rgba(15, 23, 42, 0.08);
    --so-shadow-lg:    0 12px 32px rgba(15, 23, 42, 0.12);
    --so-shadow-ocean: 0 12px 32px rgba(3, 105, 161, 0.25);
    --so-shadow-sand:  0 12px 32px rgba(245, 158, 11, 0.25);

    /* Typography scale — Poppins */
    --so-font:         'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --so-font-mono:    ui-monospace, 'SF Mono', 'Cascadia Code', 'Roboto Mono', monospace;

    /* Gradients */
    --so-grad-ocean:   linear-gradient(135deg, #075985 0%, #0369A1 45%, #0EA5E9 100%);
    --so-grad-sand:    linear-gradient(135deg, #D97706 0%, #F59E0B 50%, #FBBF24 100%);
    --so-grad-tropic:  linear-gradient(135deg, #0369A1 0%, #06B6D4 55%, #F59E0B 100%);
}

/* ---------- 2. GLOBAL BASE ---------- */
html {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
}

body {
    font-family: var(--so-font);
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
    background-color: var(--so-bg);
    color: var(--so-ink-soft);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior-y: contain; /* no bounce beyond content on PWA */
}

/* Autofill override — keep surface white on Chromium */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 40px var(--so-surface) inset !important;
    -webkit-text-fill-color: var(--so-ink-soft) !important;
    transition: background-color 9999s ease-in-out 0s;
}

/* Text selection — Ocean */
::selection {
    background: var(--so-ocean);
    color: #fff;
}

/* Scrollbar — subtle */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--so-bg-alt); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 5px; border: 2px solid var(--so-bg-alt); }
::-webkit-scrollbar-thumb:hover { background: var(--so-ocean-light); }

/* Focus ring — unified across app */
:focus-visible {
    outline: 2px solid var(--so-ocean);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 3. ANIMATIONS (reusable) ---------- */
@keyframes soFadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}
.so-fade-up { animation: soFadeUp .4s ease-out forwards; }

@keyframes soFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.so-fade-in { animation: soFadeIn .3s ease-out forwards; }

@keyframes soShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}
.so-shake { animation: soShake .4s ease; }

@keyframes soPulseRing {
    0%   { box-shadow: 0 0 0 0 rgba(3, 105, 161, 0.45); }
    70%  { box-shadow: 0 0 0 12px rgba(3, 105, 161, 0);   }
    100% { box-shadow: 0 0 0 0 rgba(3, 105, 161, 0);     }
}
.so-pulse-ring { animation: soPulseRing 2s infinite; }

@keyframes soShimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.so-shimmer {
    background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
    background-size: 200% 100%;
    animation: soShimmer 1.6s infinite;
}

/* ---------- 4. PWA SAFE-AREA UTILITIES ---------- */
.so-safe-top    { padding-top:    env(safe-area-inset-top, 0); }
.so-safe-bottom { padding-bottom: env(safe-area-inset-bottom, 0); }
.so-safe-left   { padding-left:   env(safe-area-inset-left, 0); }
.so-safe-right  { padding-right:  env(safe-area-inset-right, 0); }

/* Reserve space for bottom nav on mobile */
@media (max-width: 767px) {
    .so-has-bottomnav { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0)); }
}

/* Hide elements in PWA standalone mode */
@media all and (display-mode: standalone) {
    .so-hide-in-pwa { display: none !important; }
    .so-show-in-pwa { display: initial !important; }
}
.so-show-in-pwa { display: none; }

/* ---------- 5. COMPONENT PRIMITIVES ---------- */
/* Card */
.so-card {
    background: var(--so-surface);
    border: 1px solid var(--so-line);
    border-radius: var(--so-radius-xl);
    box-shadow: var(--so-shadow-sm);
    transition: box-shadow .2s ease, transform .2s ease;
}
.so-card:hover { box-shadow: var(--so-shadow-md); }

.so-card-ocean {
    background: var(--so-grad-ocean);
    color: #fff;
    border: 0;
    box-shadow: var(--so-shadow-ocean);
}

/* Button primitives (paired with Tailwind utilities) */
.so-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border-radius: var(--so-radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1;
    transition: all .15s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}
.so-btn:disabled { opacity: .5; cursor: not-allowed; }

.so-btn-primary   { background: var(--so-ocean); color: #fff; box-shadow: 0 1px 2px rgba(3,105,161,.3); }
.so-btn-primary:hover:not(:disabled)   { background: var(--so-ocean-dark); box-shadow: var(--so-shadow-ocean); }

.so-btn-accent    { background: var(--so-sand); color: #fff; box-shadow: 0 1px 2px rgba(245,158,11,.3); }
.so-btn-accent:hover:not(:disabled)    { background: var(--so-sand-dark); box-shadow: var(--so-shadow-sand); }

.so-btn-ghost     { background: transparent; color: var(--so-ink-soft); border-color: var(--so-line); }
.so-btn-ghost:hover:not(:disabled)     { background: var(--so-bg-alt); }

.so-btn-danger    { background: var(--so-danger); color: #fff; }
.so-btn-danger:hover:not(:disabled)    { background: #B91C1C; }

/* Badge */
.so-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 700;
    line-height: 1.25rem;
    border: 1px solid transparent;
}
.so-badge-ocean   { background: var(--so-ocean-100); color: var(--so-ocean-dark); border-color: rgba(3,105,161,.15); }
.so-badge-sand    { background: var(--so-sand-50);  color: var(--so-sand-dark);  border-color: rgba(245,158,11,.15); }
.so-badge-success { background: var(--so-success-light); color: var(--so-success); border-color: rgba(5,150,105,.15); }
.so-badge-danger  { background: var(--so-danger-light);  color: var(--so-danger);  border-color: rgba(220,38,38,.15); }
.so-badge-muted   { background: var(--so-bg-alt); color: var(--so-muted); border-color: var(--so-line); }

/* Empty state */
.so-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
    color: var(--so-muted);
    text-align: center;
}
.so-empty-icon {
    width: 3rem; height: 3rem;
    border-radius: 999px;
    background: var(--so-bg-alt);
    display: flex; align-items: center; justify-content: center;
    color: var(--so-muted);
    margin-bottom: 0.75rem;
}

/* Skeleton */
.so-skeleton {
    background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
    background-size: 200% 100%;
    animation: soShimmer 1.6s infinite;
    border-radius: var(--so-radius-sm);
    min-height: 1rem;
}

/* ---------- 6. MOBILE TOUCH TARGETS ---------- */
@media (max-width: 767px) {
    button, a.so-btn, .so-tap {
        min-height: 44px;  /* iOS HIG */
    }
}

/* ---------- 7. PRINT STYLES ---------- */
@media print {
    body { background: #fff; }
    nav, .so-no-print, .so-bottomnav { display: none !important; }
    .so-card { box-shadow: none; border-color: #000; }
}

/* ---------- 8. LOADING OVERLAY ---------- */
.so-loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s;
}
.so-loading-overlay.active { opacity: 1; pointer-events: auto; }
.so-spinner {
    width: 48px; height: 48px;
    border: 4px solid var(--so-ocean-100);
    border-top-color: var(--so-ocean);
    border-radius: 50%;
    animation: soSpin .8s linear infinite;
}
@keyframes soSpin { to { transform: rotate(360deg); } }

/* ---------- 9. PATTERN BACKGROUND (reusable decoratif) ---------- */
.so-pattern-dots {
    background-image: radial-gradient(rgba(255,255,255,0.8) 1px, transparent 1px);
    background-size: 20px 20px;
}
.so-pattern-wave {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='60' height='20' viewBox='0 0 60 20'><path d='M0 10 Q 15 0 30 10 T 60 10' stroke='rgba(255,255,255,0.15)' stroke-width='1.5' fill='none'/></svg>");
}

/* ---------- 10. INPUT UNIFIED ---------- */
.so-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--so-bg);
    border: 1px solid var(--so-line);
    border-radius: var(--so-radius-md);
    font-size: 0.875rem;
    color: var(--so-ink-soft);
    transition: border-color .15s, box-shadow .15s;
}
.so-input:focus {
    outline: none;
    border-color: var(--so-ocean);
    box-shadow: 0 0 0 3px rgba(3,105,161,.15);
    background: var(--so-surface);
}
.so-input::placeholder { color: #94A3B8; }

.so-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--so-muted);
    margin-bottom: 0.375rem;
}