/**
 * BBF TECH – Frontend Styles
 * All classes prefixed with .bbt- to avoid conflicts.
 */

/* ===== Variables ===== */
.bbf-tech-app {
    --bg: #fffaf7;
    --card: #ffffff;
    --text: #4c3a33;
    --muted: #866d63;
    --primary: #f6a9b8;
    --primary-dark: #e77f96;
    --cream: #fff1db;
    --brown: #b7866d;
    --border: #f1ddd5;
    --shadow: 0 14px 40px rgba(132,88,72,.12);
    --radius: 22px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    font-family: var(--font);
    color: var(--text);
    line-height: 1.6;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Typography ===== */
.bbt-h1 {
    font-size: 54px;
    line-height: 1.06;
    margin: 16px 0 14px;
    font-weight: 800;
}
.bbt-h2 {
    font-size: 34px;
    line-height: 1.15;
    margin: 0;
    font-weight: 800;
}
.bbt-h3 {
    font-size: 26px;
    margin: 6px 0 8px;
    font-weight: 700;
}
.bbt-lead {
    font-size: 18px;
    color: var(--muted);
    max-width: 680px;
}
.bbt-sub {
    color: var(--muted);
    max-width: 720px;
    margin-top: 6px;
}
.bbt-small {
    font-size: 14px;
    color: var(--muted);
}

/* ===== Hero ===== */
.bbt-hero {
    padding: 56px 0 32px;
}
.bbt-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 28px;
    align-items: center;
}
.bbt-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 13px;
    color: var(--muted);
    box-shadow: var(--shadow);
}
.bbt-hero-content .bbt-h1 {
    background: linear-gradient(135deg, var(--text), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bbt-hero-visual {
    display: grid;
    gap: 16px;
}
.bbt-hero-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 22px;
    box-shadow: var(--shadow);
}
.bbt-visual-top {
    background: linear-gradient(135deg, #ffe6eb, #fff4e3);
    padding: 22px;
    border-radius: 24px;
}
.bbt-visual-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

/* ===== Cards & Grids ===== */
.bbt-section {
    padding: 26px 0;
}
.bbt-section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 16px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.bbt-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}
.bbt-result-card {
    background: linear-gradient(180deg, #fff 0%, #fff8f1 100%);
}
.bbt-mini-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px;
}
.bbt-stat {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.2;
}
.bbt-grid-2 {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 22px;
}
.bbt-activity-grid,
.bbt-member-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.bbt-activity-card,
.bbt-member-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 18px;
    box-shadow: var(--shadow);
    transition: transform .2s, box-shadow .2s;
}
.bbt-activity-card:hover,
.bbt-member-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 50px rgba(132,88,72,.18);
}

/* ===== Badges & Tags ===== */
.bbt-badge-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 12px 0;
}
.bbt-badge {
    padding: 7px 11px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
    white-space: nowrap;
}
.bbt-tag {
    display: inline-block;
    padding: 7px 10px;
    border-radius: 999px;
    background: #fff3f6;
    color: #cc5874;
    font-size: 12px;
    font-weight: 800;
    margin-bottom: 10px;
}

/* ===== Buttons ===== */
.bbt-cta-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 24px;
}
.bbt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 15px;
    transition: all .2s;
}
.bbt-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    box-shadow: var(--shadow);
}
.bbt-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 44px rgba(231,127,150,.35);
}
.bbt-btn-secondary {
    background: white;
    color: var(--text);
}
.bbt-btn-secondary:hover {
    background: #fff8f5;
    border-color: var(--primary);
}
.bbt-btn:disabled {
    opacity: .5;
    cursor: not-allowed;
}
.bbt-btn.bbt-loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    margin-left: 8px;
    animation: bbt-spin .6s linear infinite;
}
@keyframes bbt-spin {
    to { transform: rotate(360deg); }
}

/* ===== Forms/Filters ===== */
.bbt-filters {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.bbt-filters label,
.bbt-card > div > label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--muted);
}
.bbt-filters select,
.bbt-card select {
    width: 100%;
    padding: 14px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    font-size: 15px;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23866d63' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}
.bbt-skills-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.bbt-skill-option {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    font-weight: 700;
    text-align: center;
    font-size: 14px;
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}
.bbt-skill-option:hover {
    background: #fff8f5;
}
.bbt-skill-option.active {
    background: #fff0f4;
    border-color: #f1b7c3;
    color: #cc5874;
    box-shadow: 0 0 0 2px rgba(231,127,150,.15);
}
.bbt-skill-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 14px;
}
.bbt-skill-pill {
    background: white;
    border: 1px solid var(--border);
    padding: 10px 12px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

/* ===== Task lists & Steps ===== */
.bbt-task-list {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}
.bbt-task {
    padding: 15px 16px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #fff;
    font-size: 14px;
    transition: border-color .2s;
}
.bbt-task:hover {
    border-color: var(--primary);
}

/* ===== Progress Bars ===== */
.bbt-kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 14px;
}
.bbt-progress-list {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}
.bbt-progress-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 14px;
}
.bbt-bar {
    height: 10px;
    background: #f5ece6;
    border-radius: 999px;
    overflow: hidden;
    margin-top: 8px;
}
.bbt-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: 999px;
    transition: width .6s ease;
}

/* ===== CTA Banner ===== */
.bbt-cta-banner {
    margin: 28px 0 46px;
    background: linear-gradient(135deg, #f8b3c1, #f4d4a7);
    padding: 28px;
    border-radius: 28px;
    color: white;
    box-shadow: var(--shadow);
}

/* ===== Toast Notification ===== */
.bbt-toast {
    position: fixed;
    top: 30px;
    right: 30px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px 22px;
    box-shadow: 0 20px 60px rgba(0,0,0,.15);
    z-index: 9999;
    font-weight: 600;
    font-size: 15px;
    animation: bbt-slideIn .4s ease;
}
.bbt-toast.success { border-left: 4px solid #46b450; }
.bbt-toast.error   { border-left: 4px solid #dc3232; }
@keyframes bbt-slideIn {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .bbt-hero-grid,
    .bbt-grid-2,
    .bbt-activity-grid,
    .bbt-member-grid {
        grid-template-columns: 1fr;
    }
    .bbt-filters,
    .bbt-kpi-grid,
    .bbt-visual-bottom,
    .bbt-skill-grid,
    .bbt-skills-selector {
        grid-template-columns: 1fr 1fr;
    }
    .bbt-h1 { font-size: 40px; }
}
@media (max-width: 620px) {
    .bbt-filters,
    .bbt-kpi-grid,
    .bbt-skill-grid,
    .bbt-skills-selector {
        grid-template-columns: 1fr;
    }
    .bbt-h1 { font-size: 34px; }
    .bbt-h2 { font-size: 28px; }
    .bbt-h3 { font-size: 22px; }
    .bbt-activity-grid,
    .bbt-member-grid {
        grid-template-columns: 1fr;
    }
}