/* ==========================================================================
   SatwaTrace - Master Design System & Component Stylesheet
   Centralized CSS Variables for Instant, Scalable Theme Adjustments
   ========================================================================== */

:root {
    --satwa-bg: #F6F3EA;
    --satwa-card: #FCFAF4;
    --satwa-text: #172B20;
    --satwa-muted: #52594F;
    --satwa-line: #DCD6C6;
    --satwa-forest: #172E21;
    --satwa-forest-hover: #234331;
    --satwa-olive: #4D6448;
    --satwa-terracotta: #BA4E28;
    --satwa-sand: #EAE5D5;
    --satwa-softgreen: #E0E7DC;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--satwa-bg);
    color: var(--satwa-text);
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, .font-heading {
    font-family: 'Fraunces', Georgia, serif;
    letter-spacing: -0.02em;
    color: var(--satwa-forest);
}

button, input, select, textarea {
    font-family: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
    cursor: pointer;
}

/* ---------- Panels & Cards ---------- */
.panel {
    background-color: var(--satwa-card);
    border: 1px solid var(--satwa-line);
    border-radius: 14px;
}

/* ---------- Navigation ---------- */
.nav-link {
    position: relative;
    padding: 20px 4px;
    color: var(--satwa-muted);
    font-size: 13px;
    font-weight: 600;
    background: transparent;
    border: none;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--satwa-forest);
}

.nav-link.active {
    color: var(--satwa-forest);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background-color: var(--satwa-forest);
}

/* ---------- Form Fields & Inputs ---------- */
.field {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
    background-color: #FBFAF5;
    border: 1px solid var(--satwa-line);
    border-radius: 8px;
    color: var(--satwa-text);
    font-size: 13px;
    font-weight: 400;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field:focus {
    border-color: var(--satwa-olive);
    box-shadow: 0 0 0 3px rgba(77, 100, 72, 0.15);
}

.field::placeholder {
    color: #8C9288;
}

.field-label {
    display: block;
    margin-bottom: 6px;
    color: var(--satwa-text);
    font-size: 12px;
    font-weight: 600;
}

/* ---------- Buttons ---------- */
.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 10px 20px;
    border: 1px solid var(--satwa-forest);
    border-radius: 8px;
    background-color: var(--satwa-forest);
    color: #FCFAF4;
    font-size: 12.5px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.15s ease;
}

.primary-btn:hover {
    background-color: var(--satwa-forest-hover);
    transform: translateY(-1px);
}

.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 9px 16px;
    border: 1px solid var(--satwa-line);
    border-radius: 8px;
    background-color: var(--satwa-card);
    color: var(--satwa-forest);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.secondary-btn:hover {
    background-color: #F1EEE3;
}

/* ---------- Animal Card ---------- */
.animal-card {
    cursor: pointer;
    background-color: var(--satwa-card);
    border: 1px solid var(--satwa-line);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.animal-card:hover {
    border-color: #BFC8BA;
    box-shadow: 0 8px 24px rgba(23, 46, 33, 0.08);
    transform: translateY(-2px);
}

.icon-btn {
    display: flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--satwa-line);
    border-radius: 8px;
    background-color: var(--satwa-bg);
    color: var(--satwa-forest);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.icon-btn:hover {
    background-color: #EAE4D4;
    color: var(--satwa-terracotta);
}

/* ---------- Upload Zone ---------- */
.upload-zone {
    border: 1.5px dashed #B8C2B3;
    border-radius: 12px;
    background-color: #FBFAF5;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.upload-zone:hover {
    border-color: var(--satwa-olive);
    background-color: #EFF3EA;
}

/* ---------- Detail Modal ---------- */
#detail-modal {
    backdrop-filter: blur(5px);
}

.fade-in {
    animation: fadeIn 0.2s ease-out;
}

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

.hero-img {
    -webkit-mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
    mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
}