/* ===== DESIGN TOKENS ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(20, 20, 32, 0.7);
    --bg-card-hover: rgba(30, 30, 48, 0.8);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-active: rgba(99, 102, 241, 0.5);

    --text-primary: #f0f0f5;
    --text-secondary: #9494a8;
    --text-muted: #5a5a72;

    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --accent-secondary: #a855f7;

    --success: #22c55e;
    --warning: #f59e0b;
    --brand-orange: #e0652b;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-lg: 0 16px 64px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px var(--accent-glow);

    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ===== AMBIENT BACKGROUND ===== */
.ambient-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
    animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: -5%;
    left: -5%;
    animation-delay: -7s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: var(--brand-orange);
    top: 50%;
    left: 40%;
    animation-delay: -14s;
    opacity: 0.15;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 35px) scale(1.02); }
}

/* ===== HEADER ===== */
#main-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    background: rgba(10, 10, 15, 0.75);
    border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-logo-img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border-subtle);
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.logo-divider {
    width: 1px;
    height: 20px;
    background: var(--border-subtle);
}

.logo-brand {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

nav {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--accent-light);
    background: var(--accent-glow);
}

/* Mobile menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem;
    flex-direction: column;
    gap: 0.25rem;
    z-index: 99;
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav.open {
    display: flex;
}

/* ===== HERO ===== */
.hero-section {
    text-align: center;
    padding: 3rem 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 30%, var(--accent-light) 70%, var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
    max-width: 520px;
    margin: 0 auto;
}

/* ===== DESIGNER SECTION ===== */
.designer-section {
    position: relative;
    z-index: 1;
    padding: 1.5rem 2rem 4rem;
    max-width: 1320px;
    margin: 0 auto;
}

.designer-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2rem;
    align-items: start;
}

/* ===== MUG PREVIEW CARD ===== */
.mug-preview-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color var(--transition-base);
    position: relative;
}

.mug-preview-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.75rem;
}

.card-badge {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-light);
    background: var(--accent-glow);
    padding: 0.3rem 0.75rem;
    border-radius: 50px;
    flex-shrink: 0;
}

/* View Toggle */
.view-toggle {
    display: flex;
    gap: 2px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    padding: 3px;
    border: 1px solid var(--border-subtle);
}

.view-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0.35rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-main);
    font-size: 0.78rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-btn:hover {
    color: var(--text-secondary);
}

.view-btn.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.reset-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transform: rotate(-45deg);
}

.mug-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
    position: relative;
}

#mug-svg {
    width: 100%;
    max-width: 380px;
    height: auto;
}

/* Mug SVG interactive areas */
.mug-area {
    cursor: pointer;
    transition: all var(--transition-base);
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 1.5;
}

.mug-area:hover {
    stroke: rgba(255, 255, 255, 0.35);
    stroke-width: 2.5;
    filter: brightness(1.1);
}

.mug-area.area-selected {
    stroke: var(--accent-light);
    stroke-width: 3;
    stroke-dasharray: 8 4;
    animation: dashMove 1s linear infinite;
}

@keyframes dashMove {
    to { stroke-dashoffset: -12; }
}

.area-label {
    font-family: var(--font-main);
    font-size: 12px;
    font-weight: 600;
    fill: rgba(255, 255, 255, 0.5);
    pointer-events: none;
    letter-spacing: 0.03em;
}

.area-label.body-label {
    font-size: 14px;
}

/* Logo area click */
.logo-area {
    cursor: pointer;
}

.logo-area:hover .logo-placeholder-outline {
    stroke: var(--accent-light);
    stroke-width: 2;
}

/* Tooltip */
.mug-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
    z-index: 10;
    backdrop-filter: blur(8px);
}

.mug-tooltip.visible {
    opacity: 1;
}

/* ===== CONTROLS PANEL ===== */
.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.control-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color var(--transition-base);
}

.control-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.control-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-title svg {
    color: var(--accent-light);
    flex-shrink: 0;
}

/* ===== AREA BUTTONS ===== */
.area-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.area-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-primary);
    text-align: left;
}

.area-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateX(4px);
}

.area-btn.active {
    background: var(--accent-glow);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.area-color-dot {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.area-btn-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.area-btn-text strong {
    font-size: 0.85rem;
    font-weight: 600;
}

.area-btn-text small {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== COLOR GRID ===== */
.color-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
}

.color-swatch {
    aspect-ratio: 1;
    border-radius: 50%;
    border: 2.5px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.color-swatch::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.color-swatch:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.color-swatch:hover::after {
    border-color: rgba(255, 255, 255, 0.3);
}

.color-swatch.selected {
    transform: scale(1.1);
    border-color: #fff;
}

.color-swatch.selected::after {
    border-color: var(--accent-light);
    animation: pulseRing 1.5s ease infinite;
}

@keyframes pulseRing {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Custom color */
.custom-color-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

.custom-color-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.custom-color-picker {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 38px;
    height: 38px;
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: transparent;
    padding: 2px;
    transition: border-color var(--transition-fast);
}

.custom-color-picker:hover {
    border-color: var(--accent);
}

.custom-color-picker::-webkit-color-swatch-wrapper { padding: 2px; }
.custom-color-picker::-webkit-color-swatch { border: none; border-radius: 4px; }
.custom-color-picker::-moz-color-swatch { border: none; border-radius: 4px; }

/* ===== LOGO UPLOAD ===== */
.logo-upload-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.logo-upload-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.logo-upload-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.logo-upload-zone {
    background: rgba(255, 255, 255, 0.03);
    border: 1.5px dashed rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: all var(--transition-base);
}

.logo-upload-zone:hover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.05);
}

.logo-upload-zone.drag-over {
    border-color: var(--accent-light);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.upload-preview {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.15);
}

.upload-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.upload-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--text-muted);
}

.upload-actions {
    display: flex;
    gap: 0.4rem;
}

.upload-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.4rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.72rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.upload-btn:hover {
    background: var(--accent-glow);
    color: var(--accent-light);
    border-color: var(--accent);
}

.remove-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.remove-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    color: #ef4444;
}

/* ===== ACTION BUTTONS ===== */
.actions-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-primary,
.btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

/* ===== GALLERY SECTION ===== */
.gallery-section {
    position: relative;
    z-index: 1;
    padding: 4rem 2rem;
    border-top: 1px solid var(--border-subtle);
}

.gallery-inner {
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-light);
    background: var(--accent-glow);
    padding: 0.3rem 0.85rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(1.5rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff 40%, var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}



/* ===== CONTACT SECTION ===== */
.contact-section {
    position: relative;
    z-index: 1;
    padding: 4rem 2rem;
    border-top: 1px solid var(--border-subtle);
}

.contact-inner {
    max-width: 600px;
    margin: 0 auto;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
    text-align: center;
}

.contact-logo {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-subtle);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding: 0.6rem 1rem;
}

.contact-item svg {
    color: var(--accent-light);
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.contact-link {
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all var(--transition-base);
    width: fit-content;
}

.contact-link:hover {
    background: var(--accent-glow);
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--accent-light);
}

.contact-link:hover svg {
    color: #fff;
}

/* ===== TOAST ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(20, 20, 32, 0.95);
    color: var(--success);
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(34, 197, 94, 0.3);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ===== FOOTER ===== */
#main-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border-subtle);
    background: rgba(10, 10, 15, 0.5);
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border-subtle);
}

.footer-title {
    font-weight: 700;
    font-size: 1rem;
    display: block;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .designer-layout {
        grid-template-columns: 1fr;
    }

    .mug-preview-card {
        order: -1;
    }

    .controls-panel {
        max-width: 520px;
        margin: 0 auto;
        width: 100%;
    }

    .header-inner {
        padding: 0 1rem;
    }

    .hero-section {
        padding: 2rem 1rem 1rem;
    }

    .designer-section {
        padding: 1rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 500px) {
    .color-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .hero-section h1 {
        font-size: 1.6rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .card-header {
        flex-wrap: wrap;
    }

    .logo-upload-group {
        grid-template-columns: 1fr;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes colorApplied {
    0% { filter: brightness(1); }
    50% { filter: brightness(1.4); }
    100% { filter: brightness(1); }
}

.color-flash {
    animation: colorApplied 0.4s ease;
}