/* =============================================================
   r3rr.com — Custom dark theme
   Overrides Bootstrap 5 custom properties and adds site-specific
   component styles.
   ============================================================= */

/* --- CSS Variables (dark palette) -------------------------- */
:root {
    --r3rr-bg:          #0a0a0f;
    --r3rr-surface:     #12121c;
    --r3rr-surface2:    #1a1a2e;
    --r3rr-border:      #2a2a3e;
    --r3rr-text:        #e8e8f0;
    --r3rr-muted:       #6b7280;
    --r3rr-accent:      #e94560;
    --r3rr-accent-dark: #c62a47;
    --r3rr-accent-glow: rgba(233, 69, 96, 0.25);
    --r3rr-purple:      #7c3aed;
    --r3rr-green:       #059669;
    --r3rr-font-mono:   'Courier New', Courier, monospace;
    --bs-body-bg:        var(--r3rr-bg);
    --bs-body-color:     var(--r3rr-text);
    --bs-border-color:   var(--r3rr-border);
    --bs-card-bg:        var(--r3rr-surface2);
}

/* --- Base --------------------------------------------------- */
body {
    background-color: var(--r3rr-bg);
    color: var(--r3rr-text);
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

a {
    color: var(--r3rr-accent);
    text-decoration: none;
    transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
    color: #ff6b8a;
    opacity: 0.9;
}

/* --- Navbar ------------------------------------------------- */
.navbar {
    background: var(--r3rr-surface) !important;
    border-bottom: 1px solid var(--r3rr-border);
    backdrop-filter: blur(10px);
}

.navbar-brand img {
    height: 36px;
    width: auto;
}

.nav-link {
    color: var(--r3rr-muted) !important;
    font-size: 0.875rem;
    padding: 0.5rem 0.875rem !important;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--r3rr-text) !important;
    background: var(--r3rr-border);
}

.nav-link i {
    margin-right: 0.4rem;
}

/* --- Cards -------------------------------------------------- */
.card {
    background: var(--r3rr-surface2);
    border: 1px solid var(--r3rr-border);
    border-radius: 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
    border-color: var(--r3rr-accent);
    box-shadow: 0 0 24px var(--r3rr-accent-glow);
    transform: translateY(-2px);
}

.card-body {
    padding: 1.75rem;
}

/* Feature cards on homepage */
.feature-card {
    text-align: center;
    cursor: default;
}

.feature-card:hover {
    cursor: pointer;
}

.feature-icon {
    width: 96px;
    height: 96px;
    margin: 0 auto 1.25rem;
    display: block;
    transition: transform 0.2s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.08);
}

/* --- Buttons ----------------------------------------------- */
.btn-accent {
    background: var(--r3rr-accent);
    border-color: var(--r3rr-accent);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: background 0.15s ease, box-shadow 0.15s ease;
}

.btn-accent:hover,
.btn-accent:focus {
    background: var(--r3rr-accent-dark);
    border-color: var(--r3rr-accent-dark);
    color: #fff;
    box-shadow: 0 0 16px var(--r3rr-accent-glow);
}

.btn-outline-accent {
    border-color: var(--r3rr-accent);
    color: var(--r3rr-accent);
}

.btn-outline-accent:hover {
    background: var(--r3rr-accent);
    color: #fff;
}

/* --- Forms -------------------------------------------------- */
.form-control,
.form-select {
    background: var(--r3rr-surface);
    border: 1px solid var(--r3rr-border);
    color: var(--r3rr-text);
    border-radius: 8px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.form-select:focus {
    background: var(--r3rr-surface);
    border-color: var(--r3rr-accent);
    color: var(--r3rr-text);
    box-shadow: 0 0 0 3px var(--r3rr-accent-glow);
}

.form-control::placeholder {
    color: var(--r3rr-muted);
}

.form-label {
    color: var(--r3rr-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.4rem;
}

.form-text {
    color: var(--r3rr-muted);
    font-size: 0.8rem;
}

textarea.form-control {
    font-family: var(--r3rr-font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    min-height: 300px;
}

/* --- Paste code viewer ------------------------------------- */
.paste-code-wrapper {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--r3rr-border);
}

.paste-code-wrapper pre {
    margin: 0;
    background: #1e1e2e !important;
    font-size: 0.875rem;
    padding: 1.5rem !important;
    overflow-x: auto;
}

.paste-code-wrapper code {
    font-family: var(--r3rr-font-mono) !important;
    font-size: 0.875rem;
    line-height: 1.65;
}

.paste-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #16162a;
    border-bottom: 1px solid var(--r3rr-border);
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.paste-toolbar .lang-badge {
    background: var(--r3rr-accent);
    color: #fff;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-family: var(--r3rr-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
}

/* --- Image viewer ------------------------------------------ */
.image-display {
    text-align: center;
    background: var(--r3rr-surface);
    border: 1px solid var(--r3rr-border);
    border-radius: 12px;
    padding: 1.5rem;
    overflow: hidden;
}

.image-display img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 8px;
    object-fit: contain;
}

/* --- Short URL result --------------------------------------- */
.short-url-result {
    font-family: var(--r3rr-font-mono);
    font-size: 1.1rem;
    background: var(--r3rr-surface);
    border: 2px solid var(--r3rr-accent);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    color: var(--r3rr-accent);
    letter-spacing: 0.02em;
    box-shadow: 0 0 20px var(--r3rr-accent-glow);
}

/* --- Metadata rows ----------------------------------------- */
.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    color: var(--r3rr-muted);
    font-size: 0.8125rem;
    margin-bottom: 1rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.meta-item i {
    color: var(--r3rr-accent);
    font-size: 0.75rem;
}

/* --- Hero section ------------------------------------------ */
.hero {
    padding: 3rem 0 2rem;
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--r3rr-text) 0%, var(--r3rr-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
}

.hero-sub {
    color: var(--r3rr-muted);
    font-size: 1.1rem;
    max-width: 520px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* --- Stats bar --------------------------------------------- */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin: 2rem 0;
    padding: 1rem 1.5rem;
    background: var(--r3rr-surface);
    border-radius: 10px;
    border: 1px solid var(--r3rr-border);
}

.stat-item {
    text-align: center;
}

.stat-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--r3rr-accent);
    font-variant-numeric: tabular-nums;
    display: block;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--r3rr-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* --- Upload drop zone -------------------------------------- */
.drop-zone {
    border: 2px dashed var(--r3rr-border);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
    background: var(--r3rr-surface);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--r3rr-accent);
    background: rgba(233, 69, 96, 0.04);
}

.drop-zone i {
    font-size: 2.5rem;
    color: var(--r3rr-muted);
    margin-bottom: 0.75rem;
    transition: color 0.2s ease;
}

.drop-zone:hover i,
.drop-zone.drag-over i {
    color: var(--r3rr-accent);
}

.drop-zone .drop-label {
    font-size: 1rem;
    color: var(--r3rr-muted);
    margin-bottom: 0.5rem;
}

/* --- Footer ------------------------------------------------ */
footer {
    background: var(--r3rr-surface);
    border-top: 1px solid var(--r3rr-border);
    color: var(--r3rr-muted);
    font-size: 0.8125rem;
    padding: 1.25rem 0;
}

footer a {
    color: var(--r3rr-muted);
}

footer a:hover {
    color: var(--r3rr-accent);
}

/* --- Alerts / Error pages ---------------------------------- */
.alert-dark-error {
    background: rgba(233, 69, 96, 0.1);
    border: 1px solid var(--r3rr-accent);
    color: var(--r3rr-text);
    border-radius: 8px;
}

.error-page-code {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
    color: var(--r3rr-accent);
    opacity: 0.7;
    font-variant-numeric: tabular-nums;
}

/* --- Utility ----------------------------------------------- */
.text-accent   { color: var(--r3rr-accent) !important; }
.text-muted-r3 { color: var(--r3rr-muted) !important; }
.bg-surface    { background-color: var(--r3rr-surface) !important; }
.bg-surface2   { background-color: var(--r3rr-surface2) !important; }
.border-accent { border-color: var(--r3rr-accent) !important; }
.font-mono     { font-family: var(--r3rr-font-mono) !important; }

/* --- Copy-to-clipboard feedback ---------------------------- */
.copy-btn.copied {
    background: var(--r3rr-green);
    border-color: var(--r3rr-green);
}

/* --- Scrollbar (webkit) ------------------------------------ */
::-webkit-scrollbar              { width: 6px; height: 6px; }
::-webkit-scrollbar-track        { background: var(--r3rr-surface); }
::-webkit-scrollbar-thumb        { background: var(--r3rr-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover  { background: var(--r3rr-muted); }

/* --- Recent gallery ---------------------------------------- */
.gallery-section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 700;
}

/* Image grid thumbnails */
.img-thumb-card {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--r3rr-border);
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.img-thumb-card:hover {
    border-color: var(--r3rr-green);
    transform: scale(1.03);
}

.img-thumb-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Paste preview cards */
.paste-preview-card:hover {
    border-color: #7c3aed !important;
    box-shadow: 0 0 20px rgba(124,58,237,.2) !important;
}

/* --- Responsive tweaks ------------------------------------- */
@media (max-width: 576px) {
    .hero-title { font-size: 2rem; }
    .stats-bar  { gap: 1rem; }
    textarea.form-control { min-height: 200px; }
}