/* ─── Design Tokens ─────────────────────────────────────── */
:root {
    /* Backgrounds */
    --bg:              #0E0F13;
    --surface:         #16171D;
    --surface-hover:   #1C1D25;
    --card:            #1A1B23;
    --card-border:     #25262F;
    --border:          #2A2B35;
    --border-subtle:   #1F2029;

    /* Text */
    --text:            #E8E9ED;
    --text-secondary:  #8B8D98;
    --text-muted:      #5C5E6A;

    /* Accent (indigo) */
    --accent:          #6C72CB;
    --accent-light:    #8187D6;
    --accent-bg:       rgba(108,114,203,0.08);
    --accent-border:   rgba(108,114,203,0.2);

    /* Semantic */
    --green:           #3DD68C;
    --green-bg:        rgba(61,214,140,0.06);
    --green-border:    rgba(61,214,140,0.15);
    --yellow:          #F0C246;
    --yellow-bg:       rgba(240,194,70,0.06);
    --yellow-border:   rgba(240,194,70,0.2);
    --red:             #E5574F;
    --red-bg:          rgba(229,87,79,0.06);
    --red-border:      rgba(229,87,79,0.15);

    /* Typography */
    --font:            'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Radii */
    --radius-sm:       6px;
    --radius-md:       10px;
    --radius-lg:       14px;
    --radius-xl:       16px;
}

/* ─── Keyframes ────────────────────────────────────────── */
@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes spinPulse {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.8; }
    50% { transform: scale(1.1) rotate(3deg); opacity: 1; }
}

@keyframes pulse {
    0%, 80%, 100% { opacity: 0.25; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1.1); }
}

@keyframes landing-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ─── Reset & Base ──────────────────────────────────────── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    margin: 0;
    overflow: hidden;
    height: 100vh;
}

/* ─── App Layout ────────────────────────────────────────── */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ─── Top Bar ───────────────────────────────────────────── */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border-subtle);
    height: 52px;
    flex-shrink: 0;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-bar-logo {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.top-bar-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.top-bar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.top-bar-home {
    cursor: pointer;
}

.top-bar-badge {
    font-size: 11px;
    color: var(--text-muted);
    padding: 2px 8px;
    border-radius: 5px;
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    margin-left: 4px;
}

.btn-download-top {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 500;
    font-family: var(--font);
    transition: all 0.15s ease;
}

.btn-download-top:hover {
    background: var(--surface-hover);
}

.btn-download-top:disabled,
.analyze-download-btn:disabled {
    opacity: 0.6;
    cursor: default;
    pointer-events: none;
}

/* Inline spinner shown inside a download button during PDF conversion. */
.btn-spin {
    display: inline-block;
    width: 13px;
    height: 13px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: landing-spin 0.7s linear infinite;
    vertical-align: -2px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-reset-top {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.btn-reset-top:hover {
    background: var(--surface-hover);
    color: var(--text);
    border-color: var(--text-muted);
}