/* 
 * v2_executive_theme - AI Studio Styles
 * Style: McKinsey/Pentagram Think Tank — consistent with index.html
 * NO glassmorphism, NO neon, NO card grids. Ruled text-based layout.
 */

/* ─── Studio Page: Warm Newsprint ─── */
body.studio-page {
    background: var(--color-bg-main);
}

body.studio-page main {
    padding-top: 100px;
    padding-bottom: var(--spacing-section);
    min-height: 100vh;
}

@media (max-width: 768px) {
    body.studio-page main {
        padding-top: 130px !important;
    }
}

/* ─── Studio Header: Asymmetric Think Tank ─── */
.studio-header {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

/* No terminal cursor pseudo — removed per negative rules */
.studio-header::before { display: none; }

/* Inherit Cormorant from base.css h1 */
.studio-header h1 {
    letter-spacing: -0.02em;
    text-transform: none;
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
    color: var(--color-text-main);
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
}

.studio-header p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    max-width: 56ch;
    line-height: 1.8;
    margin-top: var(--spacing-sm);
    max-width: none;
}

/* ─── Filter Bar: Text Navigation ─── */
.filter-bar,
.filter-bar-wrapper {
    display: flex;
    justify-content: flex-start;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

/* Think tank: no pill buttons. Plain text category tabs. */
.filter-btn {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: var(--fw-regular);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    background: transparent;
    color: var(--color-text-subtle);
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.9rem;
    border-radius: 0;
    cursor: pointer;
    transition: color var(--transition-smooth), border-color var(--transition-smooth);
    backdrop-filter: none;
}

.filter-btn:hover {
    color: var(--color-text-main);
    border-color: var(--color-border-strong);
    background: transparent;
}

/* Active: inverse charcoal — think tank selected state */
.filter-btn.active {
    background: var(--color-text-main);
    color: var(--color-bg-main);
    border-color: var(--color-text-main);
    box-shadow: none;
}

/* ─── AI Studio Grid: Ruled Text Rows ─── */
/* No card grid. A ruled list of projects. */
.ai-studio-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--color-border);
    counter-reset: project-counter;
}

/* Each project: asymmetric two-column row */
.studio-card {
    display: grid;
    grid-template-columns: var(--col-label) 1fr;
    gap: 0 var(--col-gap);
    background: transparent;
    backdrop-filter: none;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    padding: var(--spacing-lg) 0;
    align-items: start;
    transition: background-color var(--transition-smooth);
    counter-increment: project-counter;
    overflow: visible;
}

/* Remove inner gradient */
.studio-card::before { display: none; }

.studio-card:hover {
    background-color: var(--color-bg-surface);
    transform: none;
    box-shadow: none;
    border-color: var(--color-border);
}

/* Left column: project number + category tag */
.card-icon-box {
    /* Repurposed as project number — no icon styling */
    display: none;
}

/* The h3 becomes the left column in the grid */
.studio-card h3 {
    /* Left column: number + abbreviated title label */
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Auto number */
.studio-card h3::before {
    content: counter(project-counter, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 0.55rem;
    letter-spacing: 0.12em;
    color: var(--color-text-subtle);
    opacity: 0.7;
    display: block;
}

.card-title-text {
    font-family: var(--font-primary);
    font-size: 0.82rem;
    font-weight: var(--fw-semibold);
    color: var(--color-text-main);
    line-height: 1.35;
    letter-spacing: -0.01em;
}

/* Right column: all content */
.studio-card .card-desc {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    max-width: 64ch;
}

/* Business impact: white paper side-note */
.business-impact {
    border-left: 2px solid var(--color-accent);
    background: transparent;
    padding: 6px 0 6px var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: 0.82rem;
    font-style: italic;
    line-height: 1.65;
    border-radius: 0;
}

/* Tech tags: monospace micro-labels */
.studio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: auto;
    margin-bottom: var(--spacing-md);
}

.studio-card .tech-badge {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-subtle);
    border: 1px solid var(--color-border);
    padding: 2px 7px;
    border-radius: 0;
    background: transparent;
}

/* Studio actions: text-link style */
.studio-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* Primary CTA: think tank charcoal */
.action-btn-main {
    background: var(--color-text-main);
    color: var(--color-bg-main) !important;
    padding: 0.38rem 0.85rem;
    border-radius: 0;
    font-family: var(--font-mono);
    font-size: 0.58rem;
    font-weight: var(--fw-regular);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: background-color var(--transition-smooth);
    border: 1px solid var(--color-text-main);
    cursor: pointer;
}

.action-btn-main:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: none;
}

/* Secondary link: outline */
.action-icon-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: transparent;
    color: var(--color-text-muted) !important;
    border: 1px solid var(--color-border);
    padding: 0.36rem 0.8rem;
    border-radius: 0;
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color var(--transition-smooth), border-color var(--transition-smooth);
}

.action-icon-link:hover {
    color: var(--color-text-main) !important;
    border-color: var(--color-border-strong);
    background: transparent;
    box-shadow: none;
}

.action-icon {
    color: var(--color-text-subtle);
    font-size: 0.85rem;
    transition: color var(--transition-smooth);
}

.action-icon:hover {
    color: var(--color-text-main);
}

/* ─── Modal: Think Tank Light ─── */
.modal-backdrop {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(26, 26, 26, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
}

.modal-container {
    background: var(--color-bg-main);
    border: 1px solid var(--color-border-strong);
    border-radius: 0;
    width: 95%;
    max-width: 1400px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    transition: width 0.3s ease;
}

.modal-container.device-tablet { max-width: 800px; }
.modal-container.device-mobile { max-width: 420px; }

.modal-header {
    background: var(--color-bg-surface);
    padding: 0.7rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.modal-title-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-icon {
    background: var(--color-bg-accent);
    color: var(--color-text-muted);
    width: 30px; height: 30px;
    border-radius: 0;
    border: 1px solid var(--color-border);
    display: flex; justify-content: center; align-items: center;
    font-size: 0.85rem;
}

.modal-title-group h3 {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: var(--fw-semibold);
    color: var(--color-text-main);
    margin: 0;
}

.modal-subtitle {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-subtle);
    margin: 0;
}

.modal-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.device-toggle {
    display: flex;
    background: var(--color-bg-accent);
    padding: 2px;
    border-radius: 0;
    border: 1px solid var(--color-border);
}

.device-btn {
    background: transparent;
    border: none;
    color: var(--color-text-subtle);
    padding: 4px 9px;
    border-radius: 0;
    cursor: pointer;
    font-size: 0.8rem;
    transition: color var(--transition-smooth), background-color var(--transition-smooth);
}

.device-btn:hover { color: var(--color-text-main); }

.device-btn.active {
    background: var(--color-text-main);
    color: var(--color-bg-main);
}

.modal-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    width: 28px; height: 28px;
    border-radius: 0;
    cursor: pointer;
    display: flex; justify-content: center; align-items: center;
    font-size: 0.75rem;
    transition: color var(--transition-smooth), background-color var(--transition-smooth);
    text-decoration: none;
}

.modal-btn:hover {
    color: var(--color-text-main);
    border-color: var(--color-border-strong);
    background: var(--color-bg-surface);
}

.modal-btn.close-btn:hover {
    background: #B91C1C;
    border-color: #B91C1C;
    color: #fff;
}

.modal-body {
    flex: 1;
    position: relative;
    background: var(--color-bg-surface);
}

.modal-loader {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--color-bg-surface);
    color: var(--color-text-subtle);
    z-index: 5;
    gap: var(--spacing-sm);
}

.modal-loader i {
    font-size: 1.25rem;
    color: var(--color-text-subtle);
}

.modal-loader p {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-subtle);
    max-width: none;
    margin: 0;
}

#streamlit-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ═══════════════════════════════════════════════
   AI STUDIO — MOBILE RWD  (≤ 768px)
   ═══════════════════════════════════════════════ */

@media (max-width: 768px) {

    body.studio-page main {
        padding-top: 80px;
        padding-bottom: 2.5rem;
    }

    /* ─── Studio Header ─── */
    .studio-header {
        padding-top: 1rem;
        margin-bottom: 1.5rem;
    }

    /* h1 uses fluid type from layout.css — no override needed here */

    .studio-header p {
        font-size: 0.875rem;
        margin-top: 0.5rem;
        line-height: 1.7;
    }

    /* ─── Filter Bar: horizontal scroll on mobile ─── */
    .filter-bar,
    .filter-bar-wrapper {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap !important;
        padding-bottom: 6px;
        margin-bottom: 2rem !important;
        gap: 6px !important;
        justify-content: flex-start !important;
        scrollbar-width: thin;
    }

    .filter-btn {
        font-size: 0.55rem;
        padding: 0.38rem 0.75rem;
        letter-spacing: 0.1em;
        white-space: nowrap;         /* Prevent text wrap inside button */
        flex-shrink: 0;
    }

    /* ─── Studio Card: single column ─── */
    .studio-card {
        grid-template-columns: 1fr;
        padding: 1.25rem 0;
        gap: 0;
    }

    /* On mobile: auto-number is still visible (small inline prefix) */
    .studio-card h3 {
        /* Display number and title stacked, but title is prominent */
        flex-direction: column;
        gap: 3px;
        margin-bottom: 0.5rem;
    }

    .studio-card h3::before {
        font-size: 0.5rem;
        opacity: 0.5;
    }

    .card-title-text {
        font-size: 0.9rem;
    }

    .studio-card .card-desc {
        font-size: 0.875rem;
        max-width: none;
        line-height: 1.75;
    }

    .business-impact {
        font-size: 0.8rem;
        padding-left: 0.75rem;
    }

    .studio-tags {
        gap: 4px;
        margin-bottom: 0.75rem;
    }

    .studio-actions {
        gap: 6px;
    }

    .action-btn-main,
    .action-icon-link {
        font-size: 0.55rem;
        padding: 0.35rem 0.75rem;
    }

    /* ─── Modal: nearly full-screen on mobile ─── */
    .modal-backdrop {
        padding: 0.5rem;
    }

    .modal-container {
        width: 100%;
        height: 95vh;
        border-radius: 0;
    }

    .modal-header {
        padding: 0.6rem 0.8rem;
    }

    /* Hide device toggle on mobile — not useful */
    .device-toggle {
        display: none;
    }

    .modal-title-group h3 {
        font-size: 0.78rem;
    }
}

/* ─── Very small screens ─── */
@media (max-width: 375px) {
    .filter-btn {
        font-size: 0.5rem;
        padding: 0.3rem 0.65rem;
    }

    .action-btn-main,
    .action-icon-link {
        font-size: 0.5rem;
        padding: 0.3rem 0.65rem;
    }
}