/* ===== FONTS ===== */
@font-face {
    font-family: 'OpenDyslexic';
    src: url('OpenDyslexic-Regular.otf') format('opentype');
    font-display: swap;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg: #f8f9fc;
    --surface: #ffffff;
    --surface-2: #f1f3f9;
    --border: #e2e6f0;
    --border-hover: #c5cbdc;
    --accent: #5c6ef7;
    --accent-hover: #4456e6;
    --accent-light: #eef0fe;
    --text: #1a1d2e;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --success: #10b981;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.06);
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-dyslexic: 'OpenDyslexic', Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ui);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER ===== */
.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
}

.logo i {
    color: var(--accent);
    font-size: 1.25rem;
}

.header-badge {
    background: var(--accent-light);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 100px;
    border: 1px solid #d1d5fe;
}

/* ===== MAIN ===== */
.main-content {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 48px 24px 64px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ===== HERO ===== */
.hero {
    text-align: center;
    padding: 16px 0 8px;
}

.hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.15;
    margin-bottom: 14px;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== CARD ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px 0;
}

.card-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header h2 i {
    color: var(--accent);
}

/* ===== TEXTAREA ===== */
.input-card textarea {
    width: 100%;
    min-height: 280px;
    padding: 20px 24px;
    border: none;
    background: transparent;
    font-family: var(--font-ui);
    font-size: 1rem;
    color: var(--text);
    line-height: 1.75;
    resize: vertical;
    outline: none;
    display: block;
}

.input-card textarea::placeholder {
    color: var(--text-light);
}

.input-card textarea:focus {
    background: #fafbff;
}

.input-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px 20px;
    border-top: 1px solid var(--border);
    background: var(--surface-2);
}

.char-count {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s ease, transform 0.1s ease, box-shadow 0.18s ease;
    box-shadow: 0 2px 8px rgba(92, 110, 247, 0.3);
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(92, 110, 247, 0.4);
    transform: translateY(-1px);
}

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

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s ease;
}

.btn-ghost:hover {
    background: var(--surface-2);
    border-color: var(--border-hover);
    color: var(--text);
}

/* ===== CONTROLS BAR ===== */
.controls-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.control-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
}

.control-label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.control-label i {
    color: var(--accent);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-control {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s ease;
    white-space: nowrap;
}

.btn-control:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-control.active {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

/* ===== OUTPUT CARD ===== */
.output-card #output {
    padding: 24px;
    font-family: var(--font-dyslexic);
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text);
    min-height: 120px;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ===== TOAST ===== */
#toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1a1d2e;
    color: #fff;
    padding: 10px 22px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 999;
}

#toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ===== PASTEL MODE ===== */
body.pastel {
    --bg: #fdf6ec;
    --surface: #fff8f0;
    --surface-2: #fef0dc;
    --border: #f0d8b8;
}

/* ===== HIGH CONTRAST MODE ===== */
body.invert {
    --bg: #0a0a0a;
    --surface: #111111;
    --surface-2: #1a1a1a;
    --border: #333333;
    --text: #ffff00;
    --text-muted: #cccc00;
    --text-light: #999900;
    --accent: #ffff00;
    --accent-hover: #eeee00;
    --accent-light: #222200;
}

body.invert .btn-primary {
    background: #ffff00;
    color: #000;
}

body.invert .btn-primary:hover {
    background: #eeee00;
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.footer-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 48px;
    padding: 48px 0 40px;
    border-bottom: 1px solid var(--border);
}

.footer-brand .logo {
    font-size: 1rem;
    margin-bottom: 10px;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-top h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.footer-feedback p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.btn-feedback {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.18s ease;
}

.btn-feedback:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--surface-2);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.18s ease;
}

.social-link:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-bottom {
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-bottom p {
    font-size: 0.825rem;
    color: var(--text-light);
}

.footer-note {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .main-content {
        padding: 32px 16px 48px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 36px 0 32px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .header-inner {
        padding: 0 16px;
    }


    .input-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .btn-primary {
        justify-content: center;
    }

    .controls-bar {
        grid-template-columns: 1fr;
    }
}