:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #60A5FA;
    --primary-subtle: #1E3A5F;

    --accent-green: #10B981;
    --accent-red: #EF4444;
    --accent-amber: #F59E0B;
    --accent-cyan: #22D3EE;

    --bg: #0B1120;
    --bg-card: #111827;
    --bg-elevated: #1A2332;
    --bg-header: linear-gradient(135deg, #0B1120, #1E3A5F, #1D4ED8);

    --text: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --border: #1E293B;
    --shadow: rgba(0, 0, 0, 0.5);
    --tab-hover: #1E293B;
    --overlay: rgba(0, 0, 0, 0.7);
    --footer-border: #1E293B;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    padding: 0 1rem;
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 900;
    color: white;
    line-height: 1;
}

.logo-name {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: white;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-login,
.btn-settings {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    padding: 0.45rem 0.9rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-login:hover,
.btn-settings:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-settings {
    padding: 0.45rem;
    border-radius: 8px;
}

.btn-text {
    display: inline;
}

/* Hero */
.hero {
    text-align: center;
    padding: 2.5rem 1rem 1rem;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 900;
    letter-spacing: 0.06em;
    line-height: 1;
    color: var(--primary);
    text-transform: uppercase;
    animation: heroFadeIn 0.8s ease-out;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-divider {
    width: 60px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    margin: 0.7rem auto;
    animation: heroFadeIn 0.8s ease-out 0.3s both;
}

.hero-sub {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
    animation: heroFadeIn 0.8s ease-out 0.4s both;
}

/* Top Navigation */
.top-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
    padding: 0.5rem 1rem;
    width: 100%;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.nav-search {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.nav-search-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-muted);
    pointer-events: none;
    flex-shrink: 0;
}

#navSearch {
    width: 100%;
    padding: 0.55rem 0.85rem 0.55rem 2.2rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    background: var(--bg);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}

#navSearch:focus {
    border-color: var(--primary);
}

#navSearch::placeholder {
    color: var(--text-muted);
}

.nav-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-top: 4px;
    max-height: 360px;
    overflow-y: auto;
    display: none;
    z-index: 30;
    box-shadow: 0 8px 24px var(--shadow);
}

.nav-search-results.open {
    display: block;
}

.nav-search-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0.85rem;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--border);
}

.nav-search-item:last-child {
    border-bottom: none;
}

.nav-search-item:hover {
    background: var(--tab-hover);
}

.nav-search-item img {
    width: 40px;
    height: 19px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.nav-search-item-info {
    flex: 1;
    min-width: 0;
}

.nav-search-item-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-search-item-price {
    font-size: 0.75rem;
    color: var(--accent-green);
    font-weight: 600;
}

.nav-search-item-store {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.nav-search-empty {
    padding: 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.nav-link {
    padding: 0.5rem 0.9rem;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--tab-hover);
    color: var(--text);
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    min-width: 200px;
    display: none;
    z-index: 30;
    box-shadow: 0 8px 24px var(--shadow);
    overflow: hidden;
}

.nav-dropdown-menu.open {
    display: block;
}

.nav-dropdown-menu button {
    display: block;
    width: 100%;
    padding: 0.65rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.15s;
    border-bottom: 1px solid var(--border);
}

.nav-dropdown-menu button:last-child {
    border-bottom: none;
}

.nav-dropdown-menu button:hover {
    background: var(--tab-hover);
    color: var(--text);
}

.nav-dropdown-menu button.active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-light);
}

/* Main */
main {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem 1rem 2rem;
}

/* Section transitions */
.section {
    display: none;
}

.section.active {
    display: block;
    animation: sectionIn 0.3s ease-out;
}

@keyframes sectionIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Section heading */
.section-heading {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-heading::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Deal Cards */
.deal-grid {
    display: grid;
    gap: 1rem;
}

.deal-card {
    background: var(--bg-card);
    border-radius: 14px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
}

.deal-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px var(--shadow);
}

.deal-image {
    position: relative;
    width: 100%;
    aspect-ratio: 460 / 215;
    overflow: hidden;
    background: var(--bg-elevated);
}

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

.deal-image-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-muted);
    text-align: center;
    padding: 1rem;
}

.deal-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: var(--accent-red);
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.3rem 0.65rem;
    border-radius: 8px;
    letter-spacing: 0.02em;
}

.deal-badge.badge-free {
    background: var(--accent-green);
}

.deal-badge.badge-big {
    background: #a855f7;
}

.deal-body {
    padding: 1rem 1.25rem 1.25rem;
}

.deal-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--text);
    line-height: 1.3;
}

.deal-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.deal-price {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-green);
    margin-bottom: 0.75rem;
    padding: 0.5rem 0;
    border-top: 1px solid var(--border);
}

.store-logo {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    color: white;
}

.deal-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--primary);
    color: white;
    padding: 0.55rem 1.1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s;
}

.deal-cta:hover {
    background: var(--primary-dark);
}

/* Favorite Button */
.fav-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 2;
    backdrop-filter: blur(4px);
}

.fav-btn:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

.fav-btn svg {
    width: 16px;
    height: 16px;
    transition: fill 0.2s;
}

.fav-btn.is-fav {
    color: var(--accent-amber);
}

.fav-btn.is-fav svg {
    fill: var(--accent-amber);
}

/* Favoritos Tab */
.fav-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.fav-card {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    display: flex;
}

.fav-card-image {
    width: 130px;
    min-height: 100%;
    flex-shrink: 0;
    background: var(--bg-elevated);
    overflow: hidden;
}

.fav-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.fav-card-body {
    flex: 1;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
}

.fav-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
}

.fav-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fav-card-price {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-green);
    white-space: nowrap;
}

.fav-card-store {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

.fav-card-slider-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.fav-card-slider-row label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    min-width: 60px;
}

.fav-card-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    outline: none;
}

.fav-card-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 2px solid var(--bg-card);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.fav-card-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 2px solid var(--bg-card);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.fav-card-slider-val {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text);
    min-width: 50px;
    text-align: right;
}

.fav-card-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.fav-card-notif-status {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
}

.fav-card-notif-status.active {
    color: var(--accent-green);
}

.fav-card-notif-status .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.fav-card-notif-status.active .dot {
    animation: pulse 2s ease-in-out infinite;
}

.fav-card-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 500;
    transition: color 0.2s, background 0.2s;
}

.fav-card-remove:hover {
    color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

.fav-price-range {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: var(--bg-card);
    border-top: 1px solid var(--footer-border);
    text-align: center;
    padding: 1.25rem;
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Google Sign-In Button */
.g-btn {
    display: flex;
    justify-content: center;
}

.g-btn > div > div {
    margin: 0 auto !important;
}

/* Radio Group */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.25rem;
}

.radio-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.radio-item input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-radius: 50%;
    margin-top: 2px;
    flex-shrink: 0;
    cursor: pointer;
    position: relative;
    transition: border-color 0.2s;
}

.radio-item input[type="radio"]:checked {
    border-color: var(--primary);
}

.radio-item input[type="radio"]:checked::after {
    content: "";
    position: absolute;
    inset: 3px;
    border-radius: 50%;
    background: var(--primary);
}

.radio-item:hover input[type="radio"] {
    border-color: var(--primary);
}

/* Login/Register Tabs */
.login-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.login-tab {
    flex: 1;
    padding: 0.7rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s, box-shadow 0.2s;
    position: relative;
}

.login-tab:hover {
    color: var(--text);
}

.login-tab.active {
    color: var(--primary);
    box-shadow: inset 0 -2px 0 var(--primary);
}

/* Scope Select */
.scope-select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.3rem 0.5rem;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
}

.scope-select:focus {
    border-color: var(--primary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    cursor: pointer;
    background: var(--border);
    border-radius: 22px;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    left: 2px;
    bottom: 2px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-green);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(18px);
}

/* EmailJS settings */
.setting-details {
    border-top: 1px solid var(--border);
    padding: 0.6rem 1.25rem;
}

.setting-summary {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.2rem 0;
    user-select: none;
}

.setting-summary:hover {
    color: var(--text);
}

.emailjs-fields {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.6rem;
}

.emailjs-fields input {
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.8rem;
    background: var(--bg);
    color: var(--text);
    outline: none;
}

.emailjs-fields input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.btn-small {
    padding: 0.45rem 1rem;
    font-size: 0.8rem;
}

/* Settings Card */
.settings-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.settings-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.settings-card {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--bg-card);
    border-radius: 16px;
    z-index: 100;
    width: 280px;
    max-width: 85vw;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 16px 48px var(--shadow);
}

.settings-card.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.settings-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.settings-card-header h2 {
    font-size: 1rem;
    font-weight: 700;
}

.settings-card-body {
    padding: 0.75rem 1.25rem;
    display: flex;
    flex-direction: column;
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}

.setting-row:last-child {
    border-bottom: none;
}

.lang-buttons {
    display: flex;
    gap: 4px;
}

.lang-btn {
    padding: 0.25rem 0.65rem;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.04em;
}

.lang-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--bg-card);
    border-radius: 16px;
    z-index: 100;
    width: 400px;
    max-width: 90vw;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 16px 48px var(--shadow);
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
}

.login-form,
.login-success {
    padding: 1.5rem;
}

.login-success {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}

.login-success.show {
    display: flex;
}

.login-success h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.login-success p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.92rem;
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-error {
    color: var(--accent-red);
    font-size: 0.82rem;
    margin-bottom: 0.75rem;
    display: none;
}

.form-error.show {
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 0.7rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-submit:hover {
    background: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    margin-top: 0.5rem;
}

.btn-outline:hover {
    background: var(--tab-hover);
}

.form-hint {
    margin-top: 0.75rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    display: flex;
    transition: background 0.2s, color 0.2s;
}

.btn-close:hover {
    background: var(--tab-hover);
    color: var(--text);
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    gap: 0.5rem;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Logged-in state */
.btn-login.logged-in {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
}

/* Auto-refresh badge */
.refresh-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    padding: 0.25rem 0.65rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
}

.refresh-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Catalog Grid */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.85rem;
}

.catalog-card {
    position: relative;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}

.catalog-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--shadow);
}

.catalog-image {
    position: relative;
    width: 100%;
    aspect-ratio: 460 / 215;
    overflow: hidden;
    background: var(--bg-elevated);
}

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

.catalog-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
    text-align: center;
    padding: 0.5rem;
}

.catalog-info {
    padding: 0.65rem 0.75rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    flex: 1;
}

.catalog-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.catalog-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.catalog-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-green);
}

.catalog-discount {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--accent-red);
    background: rgba(239, 68, 68, 0.15);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.catalog-discount.badge-free {
    color: white;
    background: var(--accent-green);
}

.catalog-discount.badge-big {
    color: white;
    background: #a855f7;
}

.catalog-store {
    font-size: 0.68rem;
    color: var(--text-muted);
    font-weight: 500;
}

.catalog-overlay-link {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0;
}

/* Responsive */
@media (max-width: 600px) {
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.65rem;
    }
    .top-nav {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.5rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .nav-dropdown-menu {
        left: auto;
        right: 0;
    }

    .hero-title {
        font-size: clamp(2.2rem, 14vw, 3.5rem);
    }

    .deal-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
    }

    .fav-card {
        flex-direction: column;
    }

    .fav-card-image {
        width: 100%;
        aspect-ratio: 460 / 215;
        min-height: auto;
    }
}