/* 通話功能樣式（改寫自 ringdonut 的 call.css），映射到 variables.css 的
   Renaissance token 系統，跟其餘頁面共用同一套顏色/字體，不是另開一套主題。 */

:root {
    --call-accent: var(--color-terracotta);
    --call-accent-pale: var(--color-primary-light);
    --call-text-1: var(--text-primary);
    --call-text-2: var(--text-secondary);
    --call-text-3: var(--text-muted);
    --call-page-bg: var(--surface-1);
    --call-surface-strong: var(--surface-0);
    --call-glass-border: var(--border-subtle);
    --call-border-mid: var(--border-color);
    --call-shadow-soft: var(--shadow-sm);
    --call-shadow-panel: var(--shadow-md);
    --call-surface: var(--surface-0);
    --call-danger-bg: var(--color-danger-light);
    --call-danger-text: var(--color-burgundy);
    --call-inverse-text: var(--text-inverse);
    --call-portrait: none;
}

[data-theme="dark"] {
    --call-accent-pale: color-mix(in srgb, var(--color-terracotta) 22%, transparent);
    --call-danger-bg: color-mix(in srgb, var(--color-burgundy) 25%, transparent);
}

.call-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal, 1000);
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    padding: calc(env(safe-area-inset-top, 0px) + 22px) 22px calc(env(safe-area-inset-bottom, 0px) + 20px);
    color: var(--call-text-1);
    background: var(--call-page-bg);
    animation: callReveal 0.3s ease both;
}

.call-topline {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    color: var(--call-text-3);
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.call-topline strong {
    color: var(--call-text-2);
    font-weight: 400;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.14em;
}

.call-portrait {
    position: relative;
    width: min(35vw, 136px);
    height: min(35vw, 136px);
    flex-shrink: 0;
    border-radius: 50%;
    margin-top: clamp(34px, 6vh, 48px);
}

.call-portrait-slot {
    position: absolute;
    inset: 0;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--call-accent) 20%, transparent);
    border-radius: inherit;
    background-color: var(--call-accent-pale);
    background-image: var(--call-portrait);
    background-position: center top;
    background-size: cover;
    box-shadow: var(--call-shadow-panel);
}

.call-portrait::before {
    content: '';
    position: absolute;
    inset: -14px;
    border: 1px solid color-mix(in srgb, var(--call-accent) 12%, transparent);
    border-radius: 40px;
    opacity: 0;
    pointer-events: none;
}

.call-portrait.is-speaking::before {
    opacity: 1;
    animation: callRingPulse 2.4s ease-out infinite;
}

.call-presence-dot {
    position: absolute;
    z-index: 2;
    right: 9px;
    bottom: 9px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--call-accent);
    box-shadow: 0 0 0 2.5px var(--call-surface-strong);
}

.call-portrait-edit {
    position: absolute;
    inset: 0;
    z-index: 3;
    padding: 0;
    border: 0;
    border-radius: inherit;
    background: transparent;
    color: var(--call-text-2);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.call-portrait-edit:focus-visible {
    outline: 2px solid var(--call-accent);
    outline-offset: 5px;
}

.call-portrait-edit-badge {
    position: absolute;
    left: 7px;
    bottom: 7px;
    width: 25px;
    height: 25px;
    display: grid;
    place-items: center;
    border: 1px solid var(--call-glass-border);
    border-radius: 50%;
    background: var(--call-surface-strong);
    box-shadow: var(--call-shadow-soft);
    opacity: 0.72;
    transition: opacity var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.call-portrait-edit:hover .call-portrait-edit-badge,
.call-portrait-edit:focus-visible .call-portrait-edit-badge {
    opacity: 1;
    transform: scale(1.06);
}

.call-portrait-file { display: none; }

.call-who {
    margin: 22px 0 0;
    color: var(--call-text-1);
    font-family: var(--font-display);
    font-size: 27px;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.4px;
}

.incoming-call-card .call-who { margin: 20px 0 0; }

.call-status {
    min-height: 20px;
    margin: 5px 0 0;
    color: var(--call-text-3);
    font-family: var(--font-display);
    font-size: 15px;
    letter-spacing: 0.03em;
}

.call-wave {
    width: min(100%, 240px);
    height: 26px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 3px;
    margin-top: 15px;
    padding-bottom: 5px;
    overflow: hidden;
    contain: paint;
}

.call-wave i {
    display: block;
    width: 2px;
    height: 15px;
    flex: 0 0 2px;
    border-radius: 1px;
    background: var(--call-accent);
    opacity: 0.34;
    transform: scaleY(0.1334);
    transform-origin: center bottom;
    transition: transform 0.16s ease, opacity 0.16s ease;
    will-change: transform, opacity;
}

.call-wave.is-live i {
    transform: scaleY(clamp(0.1334, var(--wave), 1));
    opacity: calc(0.42 + var(--wave) * 0.4);
}

.call-caption-card {
    width: min(100%, 410px);
    min-height: 112px;
    max-height: 190px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
    padding: 18px 19px 16px;
    overflow: auto;
    border: 1px solid var(--call-glass-border);
    border-radius: var(--radius-lg);
    background: var(--call-surface-strong);
    box-shadow: var(--call-shadow-soft);
}

.call-caption-card p { margin: 0; }

.call-caption-companion {
    color: var(--call-text-1);
    font-size: 15.5px;
    line-height: 1.85;
    text-align: left;
}

.call-caption-rule {
    width: 38px;
    height: 1px;
    flex: 0 0 1px;
    background: linear-gradient(90deg, var(--call-accent), transparent);
    opacity: 0.5;
}

.call-caption-you {
    display: flex;
    gap: 8px;
    color: var(--call-text-3);
    font-size: 13.5px;
    line-height: 1.75;
    text-align: left;
}

.call-caption-you span {
    flex-shrink: 0;
    padding-top: 3px;
    color: var(--call-accent);
    font-family: var(--font-display);
    font-size: 10.5px;
    letter-spacing: 0.16em;
    opacity: 0.75;
    text-transform: uppercase;
}

.call-caption-empty {
    margin: auto !important;
    color: var(--call-text-3);
    font-family: var(--font-display);
    font-size: 14px;
    font-style: italic;
    opacity: 0.75;
}

.call-retry {
    margin-top: 2px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--call-danger-text);
    font: 13px/1.5 var(--font-display);
    text-align: left;
    text-decoration: underline;
    cursor: pointer;
}

.call-spacer { flex: 1; min-height: 14px; }

.call-controls {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 34px;
}

.call-action-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 9px;
}

.call-action-label {
    color: var(--call-text-3);
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 0.13em;
}

.call-control {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid var(--call-glass-border);
    border-radius: 50%;
    background: var(--call-surface-strong);
    box-shadow: var(--call-shadow-soft);
    color: var(--call-text-2);
    cursor: pointer;
    transition: transform var(--duration-fast) var(--ease-out);
}

.call-control svg,
.incoming-call-round svg {
    width: 21px;
    height: 21px;
    padding: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.call-control:hover { transform: translateY(-2px); }
.call-control:focus-visible { outline: 2px solid var(--call-accent); outline-offset: 3px; }

.call-control.is-off {
    border-color: transparent;
    background: var(--call-accent-pale);
    color: var(--call-text-3);
}

.call-hangup {
    width: 62px;
    height: 62px;
    margin-top: -4px;
    border-color: transparent;
    background: var(--call-danger-text);
    box-shadow: 0 6px 18px color-mix(in srgb, var(--call-danger-text) 30%, transparent);
    color: var(--call-inverse-text);
}

.call-hangup svg { fill: currentColor; stroke: none; }

/* ── 來電 ── */
.incoming-call-backdrop {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-modal, 1000) + 100);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: color-mix(in srgb, var(--call-page-bg) 55%, transparent);
    backdrop-filter: blur(18px) saturate(1.2);
    -webkit-backdrop-filter: blur(18px) saturate(1.2);
    animation: callReveal 0.3s ease both;
}

.incoming-call-card {
    width: 100%;
    max-width: 310px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 32px 26px 22px;
    border: 1px solid var(--call-glass-border);
    border-radius: var(--radius-xl);
    background: var(--call-surface-strong);
    box-shadow: var(--call-shadow-panel);
    color: var(--call-text-1);
    animation: incomingCallRise 0.42s cubic-bezier(0.22, 0.9, 0.3, 1) both;
}

.incoming-call-kicker {
    color: var(--call-text-3);
    font-family: var(--font-display);
    font-size: 11.5px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.incoming-call-kicker-rule {
    width: 34px;
    height: 1px;
    margin: 9px 0 22px;
    background: linear-gradient(90deg, var(--call-accent), transparent);
    opacity: 0.6;
}

.incoming-call-reason {
    max-width: 230px;
    min-height: 0;
    margin: 7px 0 0;
    color: var(--call-text-2);
    font-size: 14px;
    line-height: 1.7;
    text-align: center;
}

.incoming-call-actions {
    display: flex;
    gap: 44px;
    margin-top: 26px;
}

.incoming-call-round {
    width: 60px;
    height: 60px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid var(--call-border-mid);
    border-radius: 50%;
    background: var(--call-surface);
    box-shadow: var(--call-shadow-soft);
    color: var(--call-text-2);
    cursor: pointer;
    transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}

.incoming-call-round:hover {
    transform: translateY(-2px);
    box-shadow: var(--call-shadow-panel);
}

.incoming-call-round:focus-visible { outline: 2px solid var(--call-accent); outline-offset: 3px; }

.incoming-accept {
    border-color: transparent;
    background: var(--call-accent);
    color: var(--call-inverse-text);
    animation: callAnswerBreathe 2.2s ease-in-out infinite;
}

.incoming-decline {
    border-color: transparent;
    background: var(--call-danger-bg);
    color: var(--call-danger-text);
}

.incoming-call-note {
    margin-top: 22px;
    color: var(--call-text-3);
    font: italic 12.5px var(--font-display);
    opacity: 0.8;
}

.incoming-decline-list {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 24px;
}

.incoming-decline-list button {
    padding: 12px 16px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    background: var(--call-surface);
    color: var(--call-text-2);
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    text-align: left;
    transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.incoming-decline-list button:hover { border-color: var(--call-accent); color: var(--call-text-1); }

.incoming-decline-list button:last-child {
    border-color: transparent;
    background: transparent;
    color: var(--call-text-3);
    font-size: 12.5px;
    text-align: center;
}

/* ── 觸發按鈕（chat.html header 用）── */
.call-trigger-btn { color: var(--call-accent); }

@keyframes callReveal {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes incomingCallRise {
    from { opacity: 0; transform: translateY(14px) scale(0.98); }
    to { opacity: 1; transform: none; }
}

@keyframes callRingPulse {
    0% { transform: scale(0.94); opacity: 0.9; }
    100% { transform: scale(1.1); opacity: 0; }
}

@keyframes callAnswerBreathe {
    0%, 100% { box-shadow: var(--call-shadow-soft), 0 0 0 0 color-mix(in srgb, var(--call-accent) 34%, transparent); }
    50% { box-shadow: var(--call-shadow-soft), 0 0 0 9px transparent; }
}

@media (max-height: 720px) {
    .call-portrait { width: 126px; height: 126px; margin-top: 18px; }
    .call-who { margin-top: 14px; }
    .call-wave { margin-top: 8px; }
    .call-caption-card { min-height: 94px; margin-top: 10px; padding-block: 14px; }
}

@media (prefers-reduced-motion: reduce) {
    .call-overlay,
    .call-portrait::before,
    .incoming-call-backdrop,
    .incoming-call-card,
    .incoming-accept {
        animation: none !important;
        transition: none !important;
    }

    .call-wave i,
    .call-control,
    .incoming-call-round,
    .call-portrait-edit-badge {
        transition: none !important;
    }
}