/* ============================================
   PORTFOLIO - SITE-WIDE SEARCH OVERLAY
   Module 12: FOUC-safe, keyboard-friendly
   Loaded on every page.
   ============================================ */

/* ----------------------------------------
   1. OVERLAY SHELL
   ---------------------------------------- */
.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
}

body.search-open {
    overflow: hidden;
}

/* Navbar search toggle (Module 12) */
.nav-search-toggle {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    border: var(--border-width) solid var(--surface-border);
    background: var(--bg-card);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-md);
    margin-left: var(--space-3);
    cursor: pointer;
    transition: all var(--transition-base), transform var(--transition-spring);
}

.nav-search-toggle:hover {
    color: #fff;
    background: var(--gradient-primary);
    border-color: transparent;
    box-shadow: var(--shadow-primary);
    transform: translateY(-2px);
}

@media (max-width: 991.98px) {
    .nav-search-toggle {
        margin-left: var(--space-2);
    }
}

.search-overlay[hidden] {
    display: none;
}

.search-overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 8, 20, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: search-backdrop-in 0.25s var(--ease-out) both;
}

@keyframes search-backdrop-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ----------------------------------------
   2. PANEL
   ---------------------------------------- */
.search-panel {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 12vh auto 0;
    padding: 0 var(--space-4);
    height: 72vh;
    display: flex;
}

.search-panel-inner {
    width: 100%;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: var(--border-width) solid var(--surface-border-strong);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: search-panel-in 0.3s var(--ease-out) both;
}

@keyframes search-panel-in {
    from { opacity: 0; transform: translateY(-14px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---- Search form ---- */
.search-form {
    position: relative;
    display: flex;
    align-items: center;
    padding: var(--space-4) var(--space-4);
    border-bottom: var(--border-width) solid var(--surface-border);
}

.search-form > .bi-search {
    position: absolute;
    left: var(--space-4);
    color: var(--text-muted);
    font-size: var(--fs-lg);
    pointer-events: none;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: var(--fs-lg);
    padding: 0.4rem 0 0.4rem 2.4rem;
    min-width: 0;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-close {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: var(--bg-surface);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-close:hover {
    background: var(--danger);
    color: #fff;
}

/* ---- Meta + results ---- */
.search-meta {
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    border-bottom: var(--border-width) dashed var(--surface-border);
}

.search-results {
    list-style: none;
    margin: 0;
    padding: var(--space-2);
    overflow-y: auto;
    flex: 1;
}

.search-results:empty {
    display: none;
}

.search-results li a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.search-results li a:hover {
    background: var(--bg-card-hover);
}

.search-results li.active a {
    background: color-mix(in srgb, var(--primary) 14%, var(--bg-card));
}

.result-icon {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-md);
    color: var(--primary-light);
    background: color-mix(in srgb, var(--primary) 12%, var(--bg-card));
    border: var(--border-width) solid var(--surface-border);
}

.result-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.result-title {
    font-weight: var(--fw-semibold);
    font-size: var(--fs-md);
}

.result-desc {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-title mark,
.result-desc mark {
    background: transparent;
    color: var(--primary-light);
    font-weight: var(--fw-bold);
}

/* ---- Empty state ---- */
.search-empty {
    padding: var(--space-8) var(--space-4);
    text-align: center;
    color: var(--text-muted);
}

.search-empty i {
    display: block;
    font-size: 2.4rem;
    margin-bottom: var(--space-3);
    color: var(--surface-border-strong);
}

/* ---- Hints bar ---- */
.search-hints {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    border-top: var(--border-width) solid var(--surface-border);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.search-hints kbd {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    background: var(--bg-surface);
    border: var(--border-width) solid var(--surface-border-strong);
    border-bottom-width: 2px;
    border-radius: var(--radius-xs);
    padding: 0.1rem 0.4rem;
    color: var(--text-secondary);
}

/* ----------------------------------------
   3. RESPONSIVE
   ---------------------------------------- */
@media (max-width: 575.98px) {
    .search-panel {
        margin-top: 8vh;
        padding: 0 var(--space-3);
        height: 76vh;
    }

    .result-desc {
        white-space: normal;
    }
}

/* ----------------------------------------
   4. REDUCED MOTION
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .search-overlay-backdrop,
    .search-panel-inner {
        animation: none;
    }

    .search-results li a {
        transition: none;
    }
}