/*
  allmypdf — original visual system (not derived from SmartPDF / Adobe / iLovePDF).
  Direction: ink-on-paper editorial workspace. No purple gradients, no clone tool-grids.
*/

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Serif:wght@500;600&display=swap");

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

:root {
    --ink: #14212b;
    --ink-soft: #3d4f5c;
    --paper: #f3efe6;
    --paper-deep: #e7e0d2;
    --panel: #fffdf8;
    --line: #c9bfae;
    --accent: #0f6b5c;
    --accent-deep: #0a4f44;
    --accent-glow: rgba(15, 107, 92, 0.12);
    --danger: #b42318;
    --ok: #1f7a4c;
    --shadow: 0 18px 40px rgba(20, 33, 43, 0.08);
    --radius: 4px;
    --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
    --font-display: "IBM Plex Serif", Georgia, serif;
    --max: 1080px;
}

body {
    font-family: var(--font-sans);
    color: var(--ink);
    background:
        radial-gradient(ellipse 80% 50% at 10% -10%, rgba(15, 107, 92, 0.08), transparent 55%),
        linear-gradient(180deg, var(--paper) 0%, #efe9dc 100%);
    line-height: 1.65;
    min-height: 100vh;
}

a {
    color: var(--accent-deep);
}

.navbar {
    background: var(--ink);
    color: var(--paper);
    padding: 0.85rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--accent);
}

.nav-container {
    max-width: var(--max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--paper);
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.brand-mark {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-menu a {
    color: #d7deE3;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
}

.nav-menu a:hover {
    color: #fff;
}

.lang-btn {
    border: 1px solid #5a6b76;
    background: transparent;
    color: var(--paper);
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
}

.lang-btn:hover {
    border-color: var(--accent);
    color: #fff;
}

main {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
}

/* ── Hero: brand-first asymmetric workspace (≠ SmartPDF centered dropzone) ── */
.hero {
    padding: 2.75rem 0 1.5rem;
}

.hero-shell {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2rem;
    align-items: stretch;
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    overflow: hidden;
}

.hero-brand-panel {
    padding: 2.5rem 2rem 2.5rem 2.25rem;
    background:
        linear-gradient(160deg, #163029 0%, #14212b 55%, #1b2c38 100%);
    color: var(--paper);
    position: relative;
}

.hero-brand-panel::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 4px;
    background: var(--accent);
}

.eyebrow {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #9bb5ae;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 3.2vw, 2.55rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.85rem;
    color: #fff;
    background: none;
    -webkit-text-fill-color: unset;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: #c5d0d6;
    margin-bottom: 1.75rem;
    max-width: 34ch;
}

.hero-points {
    list-style: none;
    display: grid;
    gap: 0.55rem;
    font-size: 0.92rem;
    color: #b7c4cb;
}

.hero-points li {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

.hero-points li::before {
    content: "▸";
    color: var(--accent);
    font-weight: 700;
}

.hero-work-panel {
    padding: 1.75rem 1.5rem 1.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mode-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.45rem;
}

.mode-btn {
    border: 1px solid var(--line);
    background: var(--paper);
    color: var(--ink-soft);
    padding: 0.7rem 0.55rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.mode-btn:hover {
    border-color: var(--accent);
    color: var(--accent-deep);
}

.mode-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.upload-container {
    width: 100%;
}

.upload-area {
    border: 1px solid var(--line);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius);
    padding: 1.5rem 1.15rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    background: var(--paper);
}

.upload-area:hover,
.upload-area.dragover {
    background: var(--accent-glow);
    border-color: var(--accent);
}

.upload-icon {
    display: none;
}

.upload-kicker {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-deep);
    font-weight: 700;
    margin-bottom: 0.45rem;
}

.upload-area h2 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    margin-bottom: 0.35rem;
    color: var(--ink);
}

.upload-area p {
    color: var(--ink-soft);
    font-size: 0.88rem;
    margin-bottom: 1rem;
}

#fileInput {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    border: 0 !important;
}

.file-picker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.file-picker-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: none;
    border-radius: var(--radius);
    padding: 0.7rem 1.15rem;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    text-decoration: none;
}

.file-picker-btn,
.btn-primary {
    background: var(--ink);
    color: #fff;
}

.file-picker-btn:hover,
.btn-primary:hover {
    background: var(--accent-deep);
}

.btn-secondary {
    background: transparent;
    color: var(--ink-soft);
    border: 1px solid var(--line);
}

.btn-success {
    background: var(--ok);
    color: #fff;
    margin-top: 1rem;
}

.file-picker-status {
    font-size: 0.85rem;
    color: var(--ink-soft);
}

.page-range-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.85rem;
    padding: 0.85rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.page-range-box label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.page-range-box input {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.5rem 0.6rem;
    font-family: var(--font-sans);
}

.hint {
    grid-column: 1 / -1;
    font-size: 0.8rem;
    color: var(--ink-soft);
    font-weight: 400;
}

.file-list {
    list-style: none;
    margin: 0.75rem 0;
    display: grid;
    gap: 0.4rem;
}

.file-list li {
    background: var(--paper);
    border: 1px solid var(--line);
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.88rem;
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

#fileListContainer {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-container {
    margin-top: 1rem;
}

.result-card {
    background: #f2faf6;
    border: 1px solid #b7dcc8;
    border-radius: var(--radius);
    padding: 1.1rem;
}

.result-header {
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--ok);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.stat {
    background: #fff;
    border: 1px solid #d5e8dc;
    border-radius: var(--radius);
    padding: 0.55rem;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.72rem;
    color: var(--ink-soft);
    margin-bottom: 0.2rem;
}

.stat-value {
    font-size: 1.15rem;
    font-weight: 700;
}

.stat-value.error {
    color: var(--danger);
}

.error-container {
    margin-top: 0.75rem;
}

.error-message {
    background: #fef3f2;
    border: 1px solid #f3c6c2;
    color: var(--danger);
    padding: 0.75rem 0.9rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

/* Features: strip, not emoji cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 1.75rem;
    border: 1px solid var(--line);
    background: var(--panel);
}

.feature-card {
    padding: 1.1rem 1rem;
    border-right: 1px solid var(--line);
}

.feature-card:last-child {
    border-right: none;
}

.feature-icon {
    display: none;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--ink-soft);
}

.ad-section {
    margin: 2rem 0;
    padding: 0.75rem;
    border: 1px dashed var(--line);
    background: rgba(255, 253, 248, 0.7);
}

.ad-label {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 0.5rem;
}

.content-section {
    margin: 2.5rem 0;
    padding: 1.75rem 1.5rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.content-section h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    margin-bottom: 0.65rem;
}

.section-lead {
    color: var(--ink-soft);
    margin-bottom: 1.25rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.tool-card {
    padding: 1rem 1.05rem;
    border-top: 3px solid var(--accent);
    background: var(--paper);
    border-radius: var(--radius);
}

.tool-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

.tool-card p {
    font-size: 0.9rem;
    color: var(--ink-soft);
    margin-bottom: 0.65rem;
}

.tool-card a {
    font-weight: 600;
    text-decoration: none;
    font-size: 0.88rem;
}

.howto-list {
    margin: 0.75rem 0 1rem 1.2rem;
    color: var(--ink-soft);
}

.prose p {
    margin-bottom: 0.85rem;
    color: var(--ink-soft);
}

.faq {
    margin: 2.5rem 0;
}

.faq h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    margin-bottom: 1rem;
}

.faq-container {
    display: grid;
    gap: 0.5rem;
}

.faq-item {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.95rem 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
}

.faq-arrow {
    color: var(--accent);
    font-size: 1.2rem;
    transition: transform 0.2s;
}

.faq-item.open .faq-arrow {
    transform: rotate(90deg);
}

.faq-answer {
    display: none;
    padding: 0 1rem 1rem;
    color: var(--ink-soft);
    font-size: 0.92rem;
}

.faq-item.open .faq-answer {
    display: block;
}

.footer {
    background: var(--ink);
    color: #b7c4cb;
    padding: 1.75rem 1.5rem;
    margin-top: 2rem;
}

.footer-content {
    max-width: var(--max);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #d7dee3;
    text-decoration: none;
    font-size: 0.88rem;
}

.footer-note {
    width: 100%;
    font-size: 0.78rem;
    color: #8796a0;
    margin-top: 0.75rem;
}

/* Legal / secondary pages */
.legal-page {
    padding: 2.5rem 0;
}

.legal-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2rem 1.75rem;
    box-shadow: var(--shadow);
}

.legal-card h1 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.legal-card h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin: 1.5rem 0 0.6rem;
}

.legal-card p,
.legal-card li {
    color: var(--ink-soft);
    margin-bottom: 0.65rem;
}

.legal-card ul {
    margin: 0.5rem 0 0.75rem 1.2rem;
}

.legal-meta {
    font-size: 0.85rem;
}

.contact-email a {
    font-size: 1.15rem;
    font-weight: 700;
}

.btn-spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

@media (max-width: 860px) {
    .hero-shell {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
    }

    .feature-card:nth-child(2) {
        border-right: none;
    }

    .feature-card:nth-child(1),
    .feature-card:nth-child(2) {
        border-bottom: 1px solid var(--line);
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .result-stats {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        gap: 0.75rem;
    }
}

@media (max-width: 520px) {
    .mode-selector {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        border-right: none;
        border-bottom: 1px solid var(--line);
    }

    .page-range-box {
        grid-template-columns: 1fr;
    }
}