/* Yuki Mail — Executive Grade Minimalist Design System */

:root {
    /* Default: Clean Swiss Light Mode */
    --canvas-bg: #F8FAFC;
    --card-bg: #FFFFFF;
    --card-elevated: #F1F5F9;
    --card-border: #E2E8F0;
    --card-border-hover: #CBD5E1;
    --input-bg: #FFFFFF;
    --input-border: #CBD5E1;
    
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --primary-light: #EEF2FF;
    --primary-border: #C7D2FE;
    
    --emerald: #059669;
    --emerald-light: #ECFDF5;
    --emerald-border: #A7F3D0;
    
    --danger: #DC2626;
    --danger-light: #FEF2F2;
    --danger-border: #FECACA;
    
    --text-heading: #0F172A;
    --text-body: #334155;
    --text-muted: #64748B;
    --text-faint: #94A3B8;

    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.04), 0 8px 24px -4px rgba(15, 23, 42, 0.05);
    --shadow-dropdown: 0 10px 30px rgba(15, 23, 42, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 9999px;
}

[data-theme="dark"] {
    /* Refined Obsidian Dark Mode */
    --canvas-bg: #090C14;
    --card-bg: #101422;
    --card-elevated: #161C2E;
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(255, 255, 255, 0.16);
    --input-bg: #0C0F1A;
    --input-border: rgba(255, 255, 255, 0.12);
    
    --primary: #6366F1;
    --primary-hover: #4F46E5;
    --primary-light: rgba(99, 102, 241, 0.12);
    --primary-border: rgba(99, 102, 241, 0.3);
    
    --emerald: #10B981;
    --emerald-light: rgba(16, 185, 129, 0.1);
    --emerald-border: rgba(16, 185, 129, 0.3);
    
    --danger: #EF4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    --danger-border: rgba(239, 68, 68, 0.3);
    
    --text-heading: #F8FAFC;
    --text-body: #E2E8F0;
    --text-muted: #94A3B8;
    --text-faint: #64748B;

    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-dropdown: 0 12px 36px rgba(0, 0, 0, 0.6);
}

/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--canvas-bg);
    color: var(--text-body);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Layout */
.app-layout {
    width: 100%;
    max-width: 980px;
    padding: 24px 16px 40px 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Navbar */
.navbar {
    width: 100%;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-heading);
}

.brand-pfp {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
    display: block;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.nav-brand:hover .brand-pfp {
    transform: scale(1.05);
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-heading);
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: 8px;
}

.domain-selector-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-pill);
    padding: 6px 12px;
    font-size: 0.78rem;
    color: var(--text-muted);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.domain-selector-pill i {
    font-size: 0.75rem;
    color: var(--primary);
}

.domain-selector-pill select {
    background: transparent;
    border: none;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-heading);
    outline: none;
    cursor: pointer;
}

.domain-selector-pill select option {
    background: var(--card-bg);
    color: var(--text-heading);
}

.btn-theme {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-pill);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.btn-theme:hover {
    color: var(--text-heading);
    border-color: var(--card-border-hover);
}

/* Main Content Workspace */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Email Hero Card */
.email-hero-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Config Bar (Provider + Domain) */
.inbox-config-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.config-selectors {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.config-group {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--canvas-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    transition: border-color 0.15s ease;
}

.config-group:hover {
    border-color: var(--card-border-hover);
}

.config-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.config-label i {
    color: var(--primary);
    font-size: 0.75rem;
}

.config-select {
    background: transparent;
    border: none;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-heading);
    outline: none;
    cursor: pointer;
}

.config-select option {
    background: var(--card-bg);
    color: var(--text-heading);
}

.drawer-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.status-indicator {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--emerald);
    box-shadow: 0 0 6px var(--emerald);
    animation: livePulse 2s infinite ease-in-out;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

/* Full Width Email Input */
.email-input-container {
    display: flex;
    align-items: center;
    background: var(--canvas-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-md);
    padding: 0 16px;
    min-height: 54px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.email-input-container:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.email-field-icon {
    color: var(--text-faint);
    font-size: 1.1rem;
    margin-right: 12px;
}

#temp-email-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-heading);
    letter-spacing: -0.01em;
    width: 100%;
}

.btn-inline-copy {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.05rem;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background 0.15s ease;
}

.btn-inline-copy:hover {
    color: var(--primary);
    background: var(--primary-light);
}

/* Actions Toolbar */
.actions-toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-action {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 9px 16px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-body);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all 0.15s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.btn-action:hover {
    color: var(--text-heading);
    border-color: var(--card-border-hover);
    transform: translateY(-1px);
}

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

.btn-action.primary {
    background: var(--primary);
    color: #FFFFFF;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
}

.btn-action.primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #FFFFFF;
}

/* Drawers */
.drawer {
    background: var(--canvas-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 16px;
    animation: slideDown 0.2s ease-out;
}

.drawer.hidden {
    display: none !important;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.drawer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.drawer-top h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-heading);
}

.drawer-close {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.drawer-form {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.drawer-form input,
.drawer-form select {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-heading);
    outline: none;
}

.drawer-form input:focus,
.drawer-form select:focus {
    border-color: var(--primary);
}

.drawer-at {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-muted);
}

.btn-drawer-go {
    background: var(--primary);
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.btn-clear-text {
    background: transparent;
    border: none;
    color: var(--danger);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
}

.recent-list-box {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Mailbox Section */
.inbox-section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 420px;
}

.inbox-bar {
    padding: 14px 20px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.inbox-heading {
    display: flex;
    align-items: center;
    gap: 8px;
}

.inbox-heading h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-heading);
    display: flex;
    align-items: center;
    gap: 6px;
}

.count-pill {
    background: var(--card-elevated);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-pill);
    padding: 1px 7px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
}

/* Split Inbox Layout */
.inbox-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    min-height: 380px;
    flex: 1;
}

.inbox-list-col {
    border-right: 1px solid var(--card-border);
    overflow-y: auto;
    background: var(--canvas-bg);
}

.email-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.email-item {
    background: var(--card-bg);
    padding: 14px 16px;
    cursor: pointer;
    transition: background 0.15s ease;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.email-item:hover {
    background: var(--card-elevated);
}

.email-item.active {
    background: var(--primary-light);
    border-left: 3px solid var(--primary);
}

.email-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.email-item-sender {
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--text-heading);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.email-item-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.email-item-subject {
    font-size: 0.8rem;
    color: var(--text-body);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Left Column Mini OTP Chip */
.email-list-otp-pill {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--emerald-light);
    border: 1px solid var(--emerald-border);
    border-radius: 4px;
    padding: 2px 7px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--emerald);
    cursor: pointer;
    margin-top: 2px;
}

.email-list-otp-pill:hover {
    background: #D1FAE5;
}

.email-list-otp-pill .btn-mini-copy {
    background: transparent;
    border: none;
    color: var(--emerald);
    cursor: pointer;
    font-size: 0.75rem;
}

/* Reader Column */
.inbox-reader-col {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
}

.reader-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 320px;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    gap: 8px;
}

.empty-icon {
    font-size: 2.2rem;
    color: var(--text-faint);
    margin-bottom: 4px;
}

.reader-empty h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-heading);
}

.reader-empty p {
    font-size: 0.82rem;
    max-width: 280px;
}

/* Email Detail View */
.email-view {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.email-view-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: var(--canvas-bg);
}

.email-mobile-back {
    display: none;
    background: transparent;
    border: none;
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    align-items: center;
    gap: 5px;
    margin-bottom: 4px;
}

.email-view-subject {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-heading);
    word-break: break-word;
}

.email-view-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* SMART QUICK ACTION BANNER (OTP & LINK) */
.quick-action-banner {
    margin: 14px 20px 0 20px;
    background: var(--emerald-light);
    border: 1px solid var(--emerald-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quick-action-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quick-action-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--emerald);
    display: flex;
    align-items: center;
    gap: 5px;
}

.quick-action-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.otp-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card-bg);
    border: 1px solid var(--emerald-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    gap: 12px;
    flex-wrap: wrap;
}

.otp-value {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--emerald);
    user-select: all;
}

.btn-copy-otp {
    background: var(--emerald);
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-sm);
    padding: 7px 14px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.15s ease;
}

.btn-copy-otp:hover {
    background: #047857;
}

.btn-copy-otp.copied {
    background: #065F46;
}

.link-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    gap: 8px;
    flex-wrap: wrap;
}

.link-btn-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-open-link {
    background: var(--primary);
    color: #FFFFFF;
    text-decoration: none;
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-copy-link {
    background: var(--card-elevated);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-body);
}

/* Email Body */
.email-view-body {
    padding: 16px 20px;
    flex: 1;
}

.email-iframe {
    width: 100%;
    min-height: 280px;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    background: #FFFFFF;
}

.email-plaintext {
    background: var(--canvas-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    color: var(--text-body);
    white-space: pre-wrap;
    word-break: break-word;
}

/* Attachments */
.attachments-box {
    padding: 12px 20px;
    border-top: 1px solid var(--card-border);
    background: var(--canvas-bg);
}

.attachments-box h5 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-body);
    text-decoration: none;
}

/* Skeleton Loading */
.skeleton-item {
    height: 60px;
    background: linear-gradient(90deg, var(--card-bg) 25%, var(--card-elevated) 50%, var(--card-bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-bottom: 1px solid var(--card-border);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Footer */
.site-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
}

.footer-nav {
    display: flex;
    gap: 16px;
}

.footer-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.78rem;
    font-weight: 600;
}

.footer-nav a:hover {
    color: var(--primary);
}

.footer-credit {
    font-size: 0.72rem;
    color: var(--text-faint);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--text-heading);
    color: var(--card-bg);
    padding: 10px 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    z-index: 9999;
    animation: toastPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.hidden {
    display: none !important;
}

.toast-icon {
    color: #10B981;
}

@keyframes toastPop {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .app-layout {
        padding: 14px 10px 30px 10px;
        gap: 14px;
    }

    .email-hero-card {
        padding: 16px;
        gap: 12px;
    }

    .email-input-container {
        padding: 0 12px;
        min-height: 48px;
    }

    #temp-email-input {
        font-size: 0.98rem;
    }

    .actions-toolbar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .btn-action {
        justify-content: center;
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    .btn-action.primary {
        grid-column: span 2;
        padding: 10px;
    }

    /* Split layout on mobile */
    .inbox-layout {
        grid-template-columns: 1fr;
    }

    .inbox-list-col {
        border-right: none;
    }

    /* Hide reader empty box on mobile so it doesn't show double boxes */
    .inbox-reader-col.mobile-hide {
        display: none !important;
    }

    .inbox-list-col.mobile-hide {
        display: none !important;
    }

    .email-mobile-back {
        display: inline-flex;
    }

    .quick-action-banner {
        margin: 10px 12px 0 12px;
        padding: 10px 12px;
    }

    .email-view-header {
        padding: 12px 14px;
    }

    .email-view-body {
        padding: 12px 14px;
    }
}