/* ===== Kitchen Copilot — Modern Culinary Design System ===== */

/* Design Tokens */
:root {
    --kc-bg:          #F3F7F4;
    --kc-card:        #FFFFFF;
    --kc-primary:     #2D9B67;
    --kc-primary-dk:  #1F7A50;
    --kc-text:        #1A2E22;
    --kc-text-2:      #718577;
    --kc-border:      #DCE9E1;
    --kc-error:       #DC3545;
    --kc-fill:        rgba(45,155,103,0.10);
    --kc-radius-sm:   10px;
    --kc-radius-md:   14px;
    --kc-radius-lg:   20px;
    --kc-radius-pill: 999px;
    --kc-shadow:      0 2px 16px rgba(26,46,34,0.08);
    --kc-tab-height:  72px;
    --font-display:   'Fraunces', Georgia, serif;
    --font-body:      'DM Sans', system-ui, sans-serif;
}

/* Base Reset */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--kc-bg);
    color: var(--kc-text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior: none;
}

h1:focus { outline: none; }

/* ── Typography ── */
.kc-display-title {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--kc-text);
    margin: 0;
    line-height: 1.15;
}

.kc-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--kc-text);
    margin: 0;
}

.kc-subtitle {
    font-size: 15px;
    font-weight: 400;
    color: var(--kc-text-2);
    margin: 0;
}

.kc-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--kc-text);
}

.kc-caption {
    font-size: 12px;
    font-weight: 400;
    color: var(--kc-text-2);
}

.kc-section-header {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--kc-text-2);
    padding: 0 2px 8px 2px;
    margin: 0;
}

/* ── Cards ── */
.kc-card {
    background: var(--kc-card);
    border-radius: var(--kc-radius-lg);
    padding: 24px;
    box-shadow: var(--kc-shadow);
    border: 1px solid var(--kc-border);
    animation: kc-fade-up 0.4s ease both;
}

.kc-card + .kc-card {
    margin-top: 16px;
    animation-delay: 0.08s;
}

@keyframes kc-fade-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Buttons ── */
.kc-btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 14px 24px;
    background: var(--kc-primary);
    color: #fff;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--kc-radius-pill);
    cursor: pointer;
    transition: background 0.18s ease, transform 0.15s ease, box-shadow 0.18s ease;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 4px 14px rgba(45,155,103,0.30);
}

.kc-btn-primary:hover  { background: var(--kc-primary-dk); box-shadow: 0 4px 18px rgba(45,155,103,0.40); }
.kc-btn-primary:active { transform: scale(0.97); }
.kc-btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.kc-btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 14px 24px;
    background: var(--kc-fill);
    color: var(--kc-primary);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    border: 1.5px solid rgba(45,155,103,0.25);
    border-radius: var(--kc-radius-pill);
    cursor: pointer;
    transition: background 0.18s ease, transform 0.15s ease;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.kc-btn-secondary:hover  { background: rgba(45,155,103,0.16); }
.kc-btn-secondary:active { transform: scale(0.97); }
.kc-btn-secondary:disabled { opacity: 0.45; cursor: not-allowed; }

.kc-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--kc-fill);
    color: var(--kc-primary);
    border: none;
    border-radius: var(--kc-radius-sm);
    cursor: pointer;
    font-size: 18px;
    transition: background 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}
.kc-btn-icon:hover { background: rgba(45,155,103,0.18); }

/* ── Chips ── */
.kc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}

.kc-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(45,155,103,0.08);
    border: 1.5px solid rgba(45,155,103,0.30);
    color: var(--kc-primary-dk);
    border-radius: var(--kc-radius-pill);
    padding: 5px 13px;
    font-size: 13px;
    font-weight: 500;
}

.kc-chip small {
    color: var(--kc-text-2);
    font-size: 11px;
}

/* ── Form inputs ── */
.kc-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.kc-input {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--kc-text);
    background: var(--kc-card);
    border: 1.5px solid var(--kc-border);
    border-radius: var(--kc-radius-md);
    outline: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.kc-input:focus {
    border-color: var(--kc-primary);
    box-shadow: 0 0 0 3px rgba(45,155,103,0.15);
}

/* ── Status / streaming ── */
.kc-streaming-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--kc-text-2);
    font-size: 14px;
    margin-bottom: 16px;
}

.kc-pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--kc-primary);
    border-radius: 50%;
    flex-shrink: 0;
    animation: kc-pulse 1.4s ease-in-out infinite;
}

@keyframes kc-pulse {
    0%   { transform: scale(1);   opacity: 1; }
    50%  { transform: scale(1.55); opacity: 0.45; }
    100% { transform: scale(1);   opacity: 1; }
}

.kc-divider {
    height: 1px;
    background: var(--kc-border);
    margin: 16px 0;
}

.kc-placeholder {
    color: var(--kc-text-2);
    font-style: italic;
    text-align: center;
    padding: 24px 0;
    font-size: 15px;
}

.kc-error {
    color: var(--kc-error);
    font-size: 14px;
    padding: 10px 0;
}

/* ── Camera feed ── */
.kc-camera-feed {
    width: 100%;
    border-radius: var(--kc-radius-lg);
    display: block;
    background: #1A2E22;
    border: 1px solid var(--kc-border);
}

/* ── Recipe content ── */
.kc-recipe-content {
    font-size: 16px;
    line-height: 1.65;
    color: var(--kc-text);
}

.kc-recipe-content h2 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--kc-primary-dk);
    margin: 20px 0 8px 0;
}

.kc-recipe-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--kc-text);
    margin: 16px 0 6px 0;
}

.kc-recipe-content p {
    margin: 0 0 12px 0;
    color: var(--kc-text);
}

.kc-recipe-content ul, .kc-recipe-content ol {
    padding-left: 20px;
    margin: 8px 0 12px 0;
}

.kc-recipe-content li {
    margin-bottom: 5px;
    color: var(--kc-text);
}

/* ── App shell ── */
.kc-app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    background: var(--kc-bg);
}

.kc-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: calc(var(--kc-tab-height) + env(safe-area-inset-bottom, 0px));
}

/* ── Page layout ── */
.kc-page {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 16px;
}

.kc-page-header {
    padding: 52px 0 20px 0;
}

.kc-page-body {
    padding-bottom: 24px;
}

/* ── Control row ── */
.kc-control-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

/* ── Tab bar ── */
.kc-tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--kc-tab-height) + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    display: flex;
    align-items: center;
    justify-content: space-around;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid var(--kc-border);
    z-index: 100;
}

.kc-tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    flex: 1;
    height: 100%;
    text-decoration: none;
    color: var(--kc-text-2);
    padding: 8px 4px;
    transition: color 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}

.kc-tab-item.active,
.kc-tab-item:global(.active) {
    color: var(--kc-primary);
}

.kc-tab-icon {
    font-size: 22px;
    line-height: 1;
}

.kc-tab-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* ── Blazor error UI ── */
#blazor-error-ui {
    color-scheme: light only;
    background: var(--kc-card);
    color: var(--kc-text);
    border-top: 1px solid var(--kc-border);
    box-shadow: 0 -4px 20px rgba(26,46,34,0.10);
    bottom: 0;
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.85rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 9999;
    font-size: 15px;
    border-radius: var(--kc-radius-lg) var(--kc-radius-lg) 0 0;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.6rem;
    color: var(--kc-text-2);
}

.blazor-error-boundary {
    background: #FFF0F0;
    border: 1px solid #FBCDD0;
    padding: 1rem 1rem 1rem 3.7rem;
    color: var(--kc-error);
    border-radius: var(--kc-radius-md);
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

/* ── Loading progress (WASM boot) ── */
.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: var(--kc-border);
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--kc-primary);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: 600;
    color: var(--kc-text-2);
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    font-family: var(--font-body);
}

.loading-progress-text::after {
    content: var(--blazor-load-percentage-text, "Loading");
}

/* ── Form validation ── */
.valid.modified:not([type=checkbox]) { outline: 1.5px solid var(--kc-primary); }
.invalid { outline: 1.5px solid var(--kc-error); }
.validation-message { color: var(--kc-error); font-size: 13px; }

code { color: var(--kc-primary-dk); background: rgba(45,155,103,0.08); padding: 1px 5px; border-radius: 4px; }