/* ============================================
   MEGATOOLS - TOOL PAGE SHARED STYLES
   Used by all individual tool pages
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --bg: #000000;
    --bg2: #0a0a0a;
    --bg3: rgba(255, 255, 255, 0.04);
    --accent: #FD6646;
    --accent2: #FD6646;
    --accent3: #ff8a6a;
    --glow: rgba(253, 102, 70, 0.25);
    --text: #ffffff;
    --text2: #b0b0b0;
    --text3: #666666;
    --border: rgba(255, 255, 255, 0.08);
    --borderA: rgba(253, 102, 70, 0.45);
    --gradient: linear-gradient(135deg, #FD6646, #ff8a6a, #FD6646);
    --r: 16px;
    --rsm: 10px;
    --rlg: 22px;
    --font: 'Inter', sans-serif;
    --fontD: 'Space Grotesk', sans-serif;
    --t: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: var(--bg2);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

/* ── TOOL NAV ── */
.tool-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

.tool-nav-inner {
    max-width: 900px;
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text2);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--t);
    cursor: pointer;
}

.back-btn:hover {
    border-color: var(--borderA);
    color: var(--accent2);
    background: rgba(253, 102, 70, 0.08);
}

.tool-nav-title {
    font-family: var(--fontD);
    font-weight: 600;
    font-size: 1rem;
}

.nav-logo-sm {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--fontD);
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--text);
}

.logo-icon-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #FD6646, #ff8a6a);
    border-radius: 8px;
    font-size: 1rem;
    color: white;
    box-shadow: 0 2px 10px rgba(253, 102, 70, 0.3);
}

.acc {
    background: linear-gradient(135deg, #FD6646, #ff8a6a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* ── TOOL HERO ── */
.tool-hero {
    background: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(253, 102, 70, 0.15), transparent 70%);
    padding: 56px 24px 40px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.tool-hero-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    display: block;
    filter: drop-shadow(0 0 20px rgba(253, 102, 70, 0.4));
    animation: toolIconPulse 3s ease-in-out infinite;
}

@keyframes toolIconPulse {

    0%,
    100% {
        filter: drop-shadow(0 0 20px rgba(253, 102, 70, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 35px rgba(253, 102, 70, 0.6));
    }
}

.tool-hero h1 {
    font-family: var(--fontD);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.tool-hero p {
    color: var(--text2);
    font-size: 1rem;
    max-width: 520px;
    margin: 0 auto;
}

/* ── MAIN CONTENT ── */
.tool-main {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

/* ── UPLOAD ZONE ── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--rlg);
    padding: 60px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--t);
    background: var(--bg3);
    position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent2);
    background: rgba(253, 102, 70, 0.06);
    box-shadow: 0 0 0 4px rgba(253, 102, 70, 0.08);
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    display: block;
}

.upload-zone h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.upload-zone p {
    color: var(--text2);
    font-size: 0.85rem;
}

.upload-zone .supported {
    margin-top: 12px;
    font-size: 0.75rem;
    color: var(--text3);
}

/* ── CONTROLS ── */
.controls {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 28px;
    margin: 24px 0;
}

.controls-title {
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 0.95rem;
    color: var(--text2);
}

.control-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.control-row:last-child {
    margin-bottom: 0;
}

.control-label {
    font-size: 0.85rem;
    color: var(--text2);
    min-width: 120px;
}

.control-input {
    flex: 1;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--rsm);
    color: var(--text);
    font-size: 0.9rem;
    transition: var(--t);
    min-width: 0;
}

.control-input:focus {
    border-color: var(--accent2);
    box-shadow: 0 0 0 3px var(--glow);
}

.control-select {
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--rsm);
    color: var(--text);
    font-size: 0.9rem;
    transition: var(--t);
    cursor: pointer;
}

.control-select:focus {
    border-color: var(--accent2);
}

.control-select option {
    background: #1a1a1a;
}

.range-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.range-input {
    flex: 1;
    appearance: none;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}

.range-input::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--gradient);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 8px var(--glow);
    transition: transform 0.2s;
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.range-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent2);
    min-width: 40px;
    text-align: right;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.t-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--t);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 20px var(--glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text2);
}

.btn-secondary:hover {
    border-color: var(--borderA);
    color: var(--accent2);
}

.btn-success {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.4);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}

/* ── PREVIEW AREA ── */
.preview-section {
    margin-top: 28px;
}

.preview-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.preview-box {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--r);
    overflow: hidden;
}

.preview-box-label {
    padding: 10px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text2);
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
}

.preview-box img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background: repeating-conic-gradient(rgba(255, 255, 255, 0.03) 0% 25%, transparent 0% 50%) 0 0 / 20px 20px;
}

.preview-info {
    padding: 12px 16px;
    font-size: 0.8rem;
    color: var(--text2);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.info-val {
    font-weight: 600;
    color: var(--text);
}

.info-val.green {
    color: #34d399;
}

.info-val.red {
    color: #f87171;
}

/* ── OUTPUT SECTION ── */
.output-section {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 28px;
    margin-top: 24px;
}

.output-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

/* ── PROGRESS ── */
.progress-wrap {
    margin: 16px 0;
}

.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 3px;
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--glow);
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text2);
    margin-top: 6px;
}

/* ── FILE LIST ── */
.file-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 16px 0;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--rsm);
}

.file-item-name {
    font-size: 0.85rem;
    font-weight: 500;
}

.file-item-info {
    font-size: 0.75rem;
    color: var(--text2);
}

.file-item-status {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 50px;
}

.status-done {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pending {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text3);
    border: 1px solid var(--border);
}

.status-processing {
    background: rgba(253, 102, 70, 0.15);
    color: var(--accent2);
    border: 1px solid var(--borderA);
}

/* ── ALERT ── */
.alert {
    padding: 12px 18px;
    border-radius: var(--rsm);
    font-size: 0.85rem;
    margin: 12px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

/* ── HOW TO USE ── */
.how-to {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 28px;
    margin-top: 32px;
}

.how-to h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.step-num {
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.step-text {
    padding-top: 6px;
}

.step-text strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 3px;
}

.step-text span {
    font-size: 0.82rem;
    color: var(--text2);
}

/* ── CANVAS ── */
canvas {
    max-width: 100%;
    border-radius: var(--rsm);
    display: block;
    margin: 0 auto;
}

/* ── RESPONSIVE ── */
@media(max-width: 640px) {
    .preview-grid {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
    }

    .control-row {
        flex-direction: column;
        align-items: stretch;
    }

    .control-label {
        min-width: auto;
    }
}