/*
 * SDC Companion Project — minimal mobile-first CSS, no framework.
 * Brushed-gold + deep-black theme. Serif headings (Cormorant Garamond),
 * sans body (Inter). Both Google Fonts are loaded by each page's <head>.
 */

* { box-sizing: border-box; }

:root {
    --bg: #0b0d12;
    --bg-card: #14171f;
    --bg-card-2: #1a1e28;
    --gold: #c9a961;
    --gold-2: #9c7d3f;
    --gold-soft: rgba(201,169,97,.18);
    --gold-line: rgba(201,169,97,.32);
    --text: #ebe4d6;
    --text-mute: #8a8475;
    --danger: #d77373;
    --serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow: 0 8px 28px rgba(0,0,0,0.55);
    --gold-gradient: linear-gradient(135deg, #d4b76e 0%, #c9a961 40%, #8e7236 100%);
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
    min-height: 100%;
    font-size: 16px;
    line-height: 1.5;
}

body { min-height: 100vh; min-height: 100dvh; }

a { color: inherit; text-decoration: none; }

button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
    background: none;
    color: inherit;
}

h1, h2, h3 {
    font-family: var(--serif);
    font-weight: 700;
    letter-spacing: 0.2px;
    margin: 0;
}

/* ---------- LAYOUT ---------- */

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 28px 20px 40px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* ---------- BRAND HEADER ---------- */

.brand {
    text-align: center;
    margin-bottom: 28px;
}

.brand-logo {
    display: inline-block;
    margin-bottom: 14px;
}

.brand-logo img {
    display: block;
    margin: 0 auto;
    width: 120px;
    height: auto;
}

.brand-logo.sm img { width: 60px; }
.brand-logo.xs img { width: 40px; }

.brand h1 {
    color: var(--gold);
    font-size: 44px;
    line-height: 1.1;
    margin: 6px 0 6px;
}

.brand .tagline {
    color: var(--text-mute);
    margin: 0 0 12px;
    font-size: 15px;
    letter-spacing: 0.2px;
}

.brand-sub h1 { font-size: 32px; }

.brand-sub-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.brand-sub-row .brand-logo { margin-bottom: 0; flex: 0 0 auto; }

.brand-sub-row .brand-title {
    flex: 1 1 auto;
    text-align: left;
}

.brand-sub-row .brand-title h1 {
    font-size: 28px;
    color: var(--gold);
    margin-bottom: 2px;
}

.brand-sub-row .brand-title .tagline {
    margin: 0;
    font-size: 14px;
}

.back {
    display: inline-block;
    color: var(--text-mute);
    font-size: 22px;
    line-height: 1;
    padding: 4px 8px 4px 0;
}

.back:hover { color: var(--gold); }

/* ---------- LANDING — segment tiles ---------- */

.segment-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 28px;
}

@media (min-width: 640px) {
    .segment-list { grid-template-columns: 1fr 1fr; gap: 20px; }
}

.segment-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius-lg);
    padding: 26px 22px;
    transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
    box-shadow: var(--shadow);
}

.segment-card:hover {
    border-color: var(--gold-line);
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(0,0,0,0.7), 0 0 0 1px var(--gold-soft);
}

.segment-card .segment-label {
    display: block;
    font-family: var(--serif);
    font-size: 26px;
    color: var(--gold);
    margin-bottom: 6px;
    line-height: 1.15;
}

.segment-card .segment-tag {
    display: block;
    color: var(--text-mute);
    font-size: 14px;
    line-height: 1.45;
}

/* ---------- PERSONA PICKER ---------- */

.persona-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

@media (min-width: 640px) {
    .persona-list { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

.persona-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius-lg);
    padding: 22px 14px 18px;
    text-align: center;
    transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.persona-card:hover {
    border-color: var(--gold-line);
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px var(--gold-soft);
}

.persona-portrait {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-card-2);
    border: 2px solid var(--gold-line);
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

.persona-portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.persona-portrait.no-img::after {
    content: '';
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gold-gradient);
    opacity: 0.4;
}

.persona-name {
    font-family: var(--serif);
    color: var(--gold);
    font-size: 22px;
    line-height: 1.1;
    margin-top: 2px;
}

.persona-sub {
    color: var(--text-mute);
    font-size: 12px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

/* Adult two-column sub-screen */

.subgroup-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 24px;
}

@media (min-width: 720px) {
    .subgroup-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

.subgroup {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 22px 18px 24px;
    border: 1px solid rgba(255,255,255,0.04);
}

.subgroup h2 {
    color: var(--gold);
    font-size: 24px;
    margin-bottom: 14px;
    text-align: center;
    letter-spacing: 0.4px;
}

.subgroup .persona-list { margin-bottom: 0; grid-template-columns: 1fr; }

@media (min-width: 480px) {
    .subgroup .persona-list { grid-template-columns: 1fr 1fr; }
}

.empty {
    text-align: center;
    padding: 40px 16px;
    color: var(--text-mute);
}
.empty p { margin: 0 0 8px; }
.empty .empty-sub { font-size: 13px; }

/* ---------- CALL SCREEN ---------- */

.screen-call .container { padding-bottom: 28px; }

.phone {
    max-width: 560px;
    margin: 0 auto;
    padding: 18px 18px 28px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

.phone-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.phone-top .brand-logo { margin-bottom: 0; }

.phone-top .back {
    margin-right: 4px;
}

.phone-status {
    flex: 1 1 auto;
    text-align: center;
    font-size: 11px;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--gold);
}

.phone-segment {
    font-size: 11px;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--text-mute);
}

.phone-portrait-wrap {
    text-align: center;
    margin: 8px 0 18px;
}

.portrait-frame {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    border-radius: 50%;
    padding: 4px;
    background: var(--gold-gradient);
    box-shadow: 0 0 0 1px rgba(255,255,255,0.04), 0 14px 40px rgba(0,0,0,0.6);
    position: relative;
}

.portrait-frame::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    background: radial-gradient(circle, rgba(201,169,97,0.35) 0%, rgba(201,169,97,0) 70%);
    transition: opacity .25s ease;
}

.portrait-frame.speaking::after {
    opacity: 1;
    animation: speakPulse 1.6s ease-out infinite;
}

@keyframes speakPulse {
    0%   { transform: scale(0.92); opacity: 0.85; }
    70%  { transform: scale(1.18); opacity: 0; }
    100% { transform: scale(1.18); opacity: 0; }
}

.phone-portrait {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-card-2);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.phone-name {
    font-family: var(--serif);
    color: var(--gold);
    font-size: 30px;
    margin-top: 16px;
    text-align: center;
}

.phone-transcript {
    flex: 1 1 auto;
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px 16px 12px;
    margin-bottom: 18px;
    overflow-y: auto;
    min-height: 140px;
    max-height: 320px;
    border: 1px solid rgba(255,255,255,0.04);
}

.phone-transcript .turn {
    margin: 0 0 12px;
    line-height: 1.5;
    font-size: 15px;
}

.phone-transcript .turn:last-child { margin-bottom: 0; }

.phone-transcript .turn.user {
    color: var(--text-mute);
    font-family: var(--sans);
    border-left: 2px solid var(--gold);
    padding-left: 10px;
}

.phone-transcript .turn.persona {
    color: #f5efe1;
    font-family: var(--serif);
    font-size: 17px;
    padding-left: 0;
}

.phone-transcript .turn .who {
    display: block;
    font-size: 10px;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 3px;
    font-family: var(--sans);
}

.phone-transcript .turn.user .who { color: var(--text-mute); }

.phone-fallback {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius);
    padding: 14px 14px 12px;
    margin-bottom: 14px;
}

.phone-fallback.hidden { display: none; }

.fallback-note {
    color: var(--text-mute);
    font-size: 13px;
    margin: 0 0 10px;
}

.chat-form {
    display: flex;
    gap: 10px;
}

.chat-form input[type="text"] {
    flex: 1 1 auto;
    background: var(--bg);
    border: 1px solid var(--gold-line);
    border-radius: 10px;
    color: var(--text);
    padding: 10px 12px;
    font-family: var(--sans);
    font-size: 15px;
}

.chat-form input[type="text"]:focus {
    outline: none;
    border-color: var(--gold);
}

.btn-send {
    background: var(--gold-gradient);
    color: #1a1306;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 14px;
    letter-spacing: 0.4px;
}

/* ---------- CALL BUTTON ---------- */

.phone-actions {
    display: flex;
    justify-content: center;
    margin-top: 8px;
}

.btn-call {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: var(--gold-gradient);
    color: #0c0a04;
    box-shadow: 0 10px 30px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,255,255,0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2px;
    transition: transform .15s ease, box-shadow .15s ease;
}

.btn-call:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 36px rgba(0,0,0,0.7), inset 0 0 0 1px rgba(255,255,255,0.22);
}

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

.btn-call svg {
    width: 28px;
    height: 28px;
    display: block;
}

.btn-call .btn-call-dot {
    width: 28px;
    height: 28px;
    display: block;
}

.btn-call .btn-call-label {
    font-family: var(--sans);
    font-size: 10px;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    font-weight: 600;
}

.btn-call.calling {
    background: linear-gradient(135deg, #c94a4a 0%, #8e2c2c 100%);
    color: #f4e9e9;
}

/* ---------- FOOTER ---------- */

.foot {
    margin-top: auto;
    padding-top: 22px;
    text-align: center;
    color: var(--text-mute);
    font-size: 12px;
    line-height: 1.6;
}

.foot small { display: block; }

.foot .foot-note {
    display: block;
    font-style: italic;
    margin-top: 4px;
    color: rgba(138,132,117,0.7);
}
