/* =========================================================
   BASE RESET + FOUNDATION
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.55;
    color: var(--text-primary);
    background: var(--bg-app);
    -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

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

button { cursor: pointer; }

h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    color: var(--navy-900);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

/* ---- Respect reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ---- Visible keyboard focus (accessibility floor) ---- */
:focus-visible {
    outline: 2px solid var(--royal-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-5);
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 22px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--duration-fast) var(--ease);
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
    background: var(--royal-600);
    color: var(--white);
    box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 6px 16px rgba(36, 81, 232, 0.28);
}
.btn-primary:hover:not(:disabled) { background: var(--royal-500); box-shadow: 0 8px 20px rgba(36, 81, 232, 0.35); }

.btn-secondary {
    background: var(--white);
    color: var(--navy-800);
    border-color: var(--border-color);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--royal-400); color: var(--royal-600); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--gray-100); color: var(--text-primary); }

.btn-danger { background: var(--danger); color: var(--white); }
.btn-danger:hover:not(:disabled) { background: #c23a28; }

.btn-block { width: 100%; }
.btn-lg { padding: 15px 26px; font-size: var(--text-base); }
.btn-sm { padding: 8px 14px; font-size: var(--text-xs); }

.btn-loading { position: relative; color: transparent !important; pointer-events: none; }
.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
.btn-secondary.btn-loading::after,
.btn-ghost.btn-loading::after { border-color: rgba(10,24,48,0.2); border-top-color: var(--navy-800); }

@keyframes spin { to { transform: rotate(360deg); } }

/* =========================================================
   FORM ELEMENTS
   ========================================================= */
.field { margin-bottom: var(--space-5); }

.field label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--navy-800);
    margin-bottom: var(--space-2);
}

.field-hint { font-size: var(--text-xs); color: var(--text-muted); margin-top: var(--space-1); }
.field-error { font-size: var(--text-xs); color: var(--danger); margin-top: var(--space-1); display: flex; align-items: center; gap: 4px; }

.input, .select, .textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: var(--text-sm);
    transition: border-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);
}
.input:hover, .select:hover, .textarea:hover { border-color: var(--gray-300); }
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--royal-500);
    box-shadow: 0 0 0 4px var(--royal-100);
}
.input.has-error, .select.has-error { border-color: var(--danger); }
.input.has-error:focus { box-shadow: 0 0 0 4px var(--danger-bg); }

.input-group { position: relative; }
.input-group .input { padding-right: 44px; }
.input-group-icon {
    position: absolute;
    right: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    background: none;
    border: none;
    display: flex;
    padding: 4px;
}
.input-group-icon:hover { color: var(--text-secondary); }

.checkbox-row { display: flex; align-items: flex-start; gap: 10px; }
.checkbox-row input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: var(--royal-600);
    margin-top: 2px;
    flex-shrink: 0;
}
.checkbox-row label { font-size: var(--text-sm); color: var(--text-secondary); font-weight: 400; }

/* =========================================================
   CARDS / BADGES / ALERTS
   ========================================================= */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg); color: var(--danger); }
.badge-info    { background: var(--info-bg); color: var(--info); }

.alert {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    border: 1px solid transparent;
}
.alert-success { background: var(--success-bg); color: var(--success); border-color: rgba(18,148,107,0.2); }
.alert-danger  { background: var(--danger-bg); color: var(--danger); border-color: rgba(217,67,47,0.2); }
.alert-info    { background: var(--info-bg); color: var(--royal-600); border-color: rgba(36,81,232,0.15); }

/* =========================================================
   UTILITIES
   ========================================================= */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mb-4 { margin-bottom: var(--space-4); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.hidden { display: none !important; }
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}