shared/styles.css

/* HF-Master Shared Styles
   Light research-studio system inspired by MCP Video Localizer. */

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

:root {
    --peach: #ffad7a;
    --peach-dark: #e8935c;
    --lavender: #b8a9d9;
    --sky-blue: #7accff;
    --ink: #1f2937;
    --slate: #4b5563;
    --muted: #6b7280;
    --bg-light: #f9fafb;
    --surface: #ffffff;
    --surface-soft: #fff7f1;
    --border-default: #e5e7eb;
    --border-subtle: #f3f4f6;
    --accent-subtle: rgba(255, 173, 122, 0.14);
    --shadow-sm: 0 1px 2px rgba(31, 41, 55, 0.05);
    --shadow-md: 0 8px 24px rgba(31, 41, 55, 0.08);
    --shadow-lg: 0 18px 48px rgba(31, 41, 55, 0.12);
    --radius: 8px;
}

html {
    scroll-behavior: smooth;
}

body,
.gradio-container {
    background:
        radial-gradient(circle at 7% 4%, rgba(255, 173, 122, 0.22), transparent 28%),
        radial-gradient(circle at 88% 8%, rgba(122, 204, 255, 0.20), transparent 30%),
        linear-gradient(180deg, #ffffff 0%, var(--bg-light) 44%, #f7f2fb 100%) !important;
    color: var(--ink) !important;
    font-family: Inter, "Helvetica Neue", "Segoe UI", system-ui, -apple-system, sans-serif !important;
    font-weight: 400;
    letter-spacing: 0;
    -webkit-font-smoothing: antialiased;
}

.gradio-container {
    max-width: 1180px !important;
    margin: 0 auto !important;
}

.main,
.block-container {
    background: transparent !important;
}

.block-container {
    max-width: 1180px;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* Shared hero used by Gradio helpers and Streamlit HTML. */
.hf-hero,
.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 20% 8%, rgba(255, 255, 255, 0.52), transparent 26%),
        linear-gradient(135deg, var(--peach) 0%, var(--lavender) 54%, var(--sky-blue) 100%);
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 0 34px rgba(255, 173, 122, 0.18);
    color: #ffffff;
    margin: 1rem 0 1.25rem 0;
    padding: clamp(1.25rem, 3vw, 2.25rem);
}

.hf-hero::after,
.hero::after {
    content: "";
    position: absolute;
    inset: auto -12% -45% auto;
    width: 360px;
    height: 360px;
    background: rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    pointer-events: none;
}

.hf-hero-grid,
.hf-hero-copy {
    position: relative;
    z-index: 1;
}

.hf-hero-copy {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.hf-icon {
    align-items: center;
    background: rgba(255, 255, 255, 0.24);
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    flex: 0 0 auto;
    font-size: 1.7rem;
    height: 3.75rem;
    justify-content: center;
    width: 3.75rem;
}

.hf-badge {
    background: rgba(255, 255, 255, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.96);
    display: inline-flex;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    margin-bottom: 0.7rem;
    padding: 0.34rem 0.7rem;
    text-transform: uppercase;
}

.hf-hero h1,
.hero h1 {
    color: #ffffff !important;
    font-size: clamp(2rem, 4vw, 3.35rem);
    font-weight: 800;
    letter-spacing: 0;
    line-height: 1.04;
    margin: 0 0 0.45rem 0;
    text-shadow: 0 2px 12px rgba(31, 41, 55, 0.18);
}

.hf-hero p,
.hero p {
    color: rgba(255, 255, 255, 0.96) !important;
    font-size: 1.03rem;
    line-height: 1.65;
    margin: 0;
    max-width: 68ch;
}

.hf-chip-row,
.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1.15rem;
    position: relative;
    z-index: 1;
}

.hf-chip,
.badge,
.tech-tag {
    background: rgba(255, 255, 255, 0.24);
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    color: #ffffff;
    display: inline-flex;
    font-size: 0.86rem;
    font-weight: 700;
    padding: 0.42rem 0.75rem;
}

.hf-method-grid {
    display: grid;
    gap: 0.9rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin: 1rem 0;
}

.hf-method-card,
.glass-card,
.project-card,
.info-card,
.metric-card,
.stat-box,
.gradio-container .form,
.gradio-container .panel {
    background: rgba(255, 255, 255, 0.88) !important;
    border: 1px solid var(--border-default) !important;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow-md) !important;
}

.hf-method-card {
    padding: 1rem;
}

.hf-method-card span {
    color: var(--peach-dark);
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.hf-method-card p {
    color: var(--slate);
    line-height: 1.55;
    margin: 0;
}

.project-card,
.info-card,
.metric-card,
.stat-box {
    padding: 1rem;
}

h1,
h2,
h3,
h4,
.markdown-text h1,
.markdown-text h2,
.markdown-text h3 {
    color: var(--ink) !important;
    font-family: Inter, "Helvetica Neue", system-ui, sans-serif !important;
    letter-spacing: 0;
}

p,
li,
label,
.markdown-text,
.markdown-text p,
.markdown-text span {
    color: var(--slate) !important;
    font-family: Inter, "Helvetica Neue", system-ui, sans-serif !important;
}

strong {
    color: var(--ink);
    font-weight: 700;
}

input,
select,
textarea,
.gr-textbox,
.gr-dropdown {
    background: #ffffff !important;
    border: 1px solid var(--border-default) !important;
    border-radius: var(--radius) !important;
    color: var(--ink) !important;
    font-family: Inter, "Helvetica Neue", system-ui, sans-serif !important;
    transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}

input:focus,
select:focus,
textarea:focus,
.gr-textbox:focus {
    border-color: var(--peach) !important;
    box-shadow: 0 0 0 3px var(--accent-subtle) !important;
    outline: none !important;
}

button.primary,
button[class*="primary"],
div[data-testid="stButton"] > button {
    background: linear-gradient(135deg, var(--peach) 0%, var(--peach-dark) 100%) !important;
    border: 0 !important;
    border-radius: var(--radius) !important;
    box-shadow: 0 8px 20px rgba(255, 173, 122, 0.28) !important;
    color: #ffffff !important;
    font-family: Inter, "Helvetica Neue", system-ui, sans-serif !important;
    font-weight: 800 !important;
    padding: 0.72rem 1.1rem !important;
    transition: transform 0.18s ease, box-shadow 0.18s ease !important;
}

button.primary:hover,
button[class*="primary"]:hover,
div[data-testid="stButton"] > button:hover {
    box-shadow: 0 12px 26px rgba(255, 173, 122, 0.36) !important;
    transform: translateY(-1px) !important;
}

button.secondary,
button[class*="secondary"] {
    background: #ffffff !important;
    border: 1px solid var(--border-default) !important;
    border-radius: var(--radius) !important;
    color: var(--ink) !important;
    font-weight: 700 !important;
}

code,
pre {
    border-radius: var(--radius) !important;
}

code {
    background: #fff2e8 !important;
    color: #9a4f1f !important;
}

pre {
    background: #111827 !important;
    border: 1px solid #273244 !important;
    color: #f9fafb !important;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th {
    background: #fff2e8;
    color: var(--ink);
    font-weight: 800;
}

td,
th {
    border-bottom: 1px solid var(--border-default);
    padding: 0.7rem;
}

blockquote,
.markdown-text blockquote {
    background: #faf9fc !important;
    border-left: 3px solid var(--lavender) !important;
    border-radius: 0 var(--radius) var(--radius) 0 !important;
    color: var(--slate) !important;
    margin: 0.5rem 0 !important;
    padding: 0.75rem 1rem !important;
}

a {
    color: #2774a9 !important;
    font-weight: 700;
}

.hf-footer {
    border-top: 1px solid var(--border-default);
    color: var(--muted);
    font-size: 0.92rem;
    margin-top: 1.5rem;
    padding: 1rem 0;
    text-align: center;
}

.hf-footer strong {
    color: var(--ink);
}

/* Streamlit shell polish. */
div[data-testid="stHeader"],
div[data-testid="stToolbar"] {
    background: transparent !important;
}

div[data-testid="stSidebar"] {
    background: rgba(255, 255, 255, 0.82) !important;
    border-right: 1px solid var(--border-default);
}

div[data-baseweb="input"],
div[data-baseweb="textarea"],
div[data-baseweb="select"] {
    background: #ffffff !important;
}

div[data-testid="stTextInput"] input,
div[data-testid="stTextArea"] textarea,
div[data-testid="stSelectbox"] div {
    border-radius: var(--radius) !important;
    border-color: var(--border-default) !important;
}

div[data-testid="stMetric"] {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-default);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 0.8rem 1rem;
}

.stPlotlyChart {
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid var(--border-default);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 0.3rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hf-hero,
.hf-method-card,
.metric-card,
.info-card {
    animation: fadeIn 0.28s ease-out;
}

@media (max-width: 720px) {
    .hf-hero-copy {
        flex-direction: column;
    }

    .hf-icon {
        height: 3.2rem;
        width: 3.2rem;
    }
}