:root {
    --bg-color: #0b0f19;
    --surface-color: rgba(17, 24, 39, 0.7);
    --surface-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --primary-hover: linear-gradient(135deg, #4f46e5 0%, #9333ea 50%, #db2777 100%);
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-border: rgba(255, 255, 255, 0.12);
    --error-bg: rgba(239, 68, 68, 0.1);
    --error-text: #fca5a5;
    --focus-ring: rgba(168, 85, 247, 0.4);
}

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

html {
    overflow-x: hidden;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
    width: 100%;
}

/* ── Dynamic Background Orbs ────────────────────── */
.bg-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
    animation: float 20s ease-in-out infinite alternate;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(99, 102, 241, 0.3);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: rgba(236, 72, 153, 0.2);
    bottom: 100px;
    right: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(168, 85, 247, 0.2);
    top: 40%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translateY(0) scale(1);
    }

    100% {
        transform: translateY(30px) scale(1.1);
    }
}

/* ── Header ─────────────────────────────── */
.site-header {
    background: rgba(11, 15, 25, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--surface-border);
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    /* Must NOT be overflow:hidden so the nav drawer can escape below */
    overflow: visible;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 56px;
    position: relative;
    overflow: visible;
}

.site-logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
    flex-shrink: 0;
    z-index: 10;
}

.logo-icon {
    width: 30px;
    height: 30px;
    background: var(--primary-gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
    flex-shrink: 0;
}

/* ── Hamburger button ─────────────────── */
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 8px;
    flex-direction: column;
    gap: 4px;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: border-color 0.2s, color 0.2s;
}

.nav-toggle:hover {
    border-color: #a855f7;
    color: #fff;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all 0.3s;
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ── Desktop nav ─────────────────────── */
.site-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.site-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    position: relative;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
    color: #fff;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.site-nav a:hover::after {
    width: 100%;
}

/* ── Main Content Area ──────────────────── */
main {
    flex: 1;
    padding: 28px 16px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.hero-section {
    text-align: center;
    margin-bottom: 4px;
    animation: fadeInDown 0.6s ease-out;
    padding: 0 8px;
}

.hero-title {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(24px, 6vw, 48px);
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.15;
}

.hero-title span {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(13px, 3vw, 17px);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Studio wrapper ─────────────────────── */
.qr-studio-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    background: var(--surface-color);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid var(--surface-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

@media (min-width: 900px) {
    .qr-studio-wrapper {
        grid-template-columns: 400px 1fr;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Left panel ──────────────────────────── */
.panel {
    padding: 20px 16px;
    border-right: none;
    border-bottom: 1px solid var(--surface-border);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.section-label {
    font-family: 'Outfit', sans-serif;
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 6px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

textarea,
input[type="text"] {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: #fff;
    font-family: 'DM Mono', monospace;
    font-size: 14px;
    padding: 12px 14px;
    outline: none;
    transition: all 0.2s;
    resize: vertical;
    width: 100%;
}

textarea::placeholder,
input[type="text"]::placeholder {
    color: #64748b;
}

textarea:focus,
input:focus {
    border-color: #a855f7;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

textarea {
    min-height: 80px;
}

/* ── Color pickers ───────────────────────── */
.color-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.color-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.color-field label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.color-input-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 6px 12px;
    transition: all 0.2s;
}

.color-input-wrap:focus-within {
    border-color: #a855f7;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

input[type="color"] {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 6px;
    padding: 0;
    cursor: pointer;
    background: none;
    flex-shrink: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
}

.hex-input {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    font-family: 'DM Mono', monospace;
    font-size: 13px;
    min-width: 0;
    width: 100%;
    color: #fff;
    box-shadow: none !important;
}

.hex-input:focus {
    border-color: transparent !important;
    box-shadow: none !important;
}

/* ── Sliders ─────────────────────────────── */
.slider-wrap {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

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

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--input-border);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #a855f7;
    cursor: pointer;
    border: 3px solid #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

/* ── Logo drop zone ──────────────────────── */
.logo-drop {
    border: 2px dashed rgba(168, 85, 247, 0.4);
    background: rgba(168, 85, 247, 0.05);
    border-radius: 12px;
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.logo-drop:hover,
.logo-drop.drag-over {
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.1);
}

.logo-drop input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.logo-drop .drop-icon {
    font-size: 24px;
    margin-bottom: 8px;
    color: #a855f7;
}

.logo-drop p {
    font-size: 13px;
    color: var(--text-secondary);
}

.logo-drop p strong {
    color: #c084fc;
    font-weight: 600;
}

.logo-preview {
    display: none;
    align-items: center;
    gap: 12px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 10px 14px;
}

.logo-preview img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
    padding: 4px;
    flex-shrink: 0;
}

.logo-preview span {
    font-size: 13px;
    color: var(--text-primary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

.logo-preview button {
    background: rgba(239, 68, 68, 0.1);
    border: none;
    color: #ef4444;
    cursor: pointer;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.logo-preview button:hover {
    background: #ef4444;
    color: #fff;
}

/* ── Size presets ────────────────────────── */
.size-presets {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.preset-btn {
    font-family: 'DM Mono', monospace;
    font-size: 12px;
    padding: 7px 13px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    flex: 1;
    min-width: 0;
    text-align: center;
}

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

.preset-btn.active {
    border-color: #a855f7;
    color: #fff;
    background: rgba(168, 85, 247, 0.2);
    box-shadow: inset 0 0 0 1px #a855f7;
}

/* ── Generate button ─────────────────────── */
.generate-btn {
    width: 100%;
    padding: 15px;
    background: var(--primary-gradient);
    color: #FFF;
    border: none;
    border-radius: 12px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.4);
    margin-top: 4px;
}

.generate-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.5);
}

.generate-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(168, 85, 247, 0.4);
}

.generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #FFF;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
    flex-shrink: 0;
}

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

.error-msg {
    background: var(--error-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 13px;
    color: var(--error-text);
    display: none;
    font-weight: 500;
}

/* ── Support / Privacy Appeal Card (left panel) ────── */
.support-appeal-card {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.08) 0%, rgba(168, 85, 247, 0.08) 100%);
    border: 1px solid rgba(236, 72, 153, 0.25);
    border-radius: 14px;
    padding: 18px 16px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.support-appeal-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(168, 85, 247, 0.15));
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s;
}

.support-appeal-card:hover::before {
    opacity: 1;
}

.support-appeal-card > * {
    position: relative;
    z-index: 1;
}

.appeal-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(168, 85, 247, 0.2));
    border: 1px solid rgba(236, 72, 153, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f472b6;
    animation: heartbeat 2.4s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    14% { transform: scale(1.12); }
    28% { transform: scale(1); }
    42% { transform: scale(1.08); }
    70% { transform: scale(1); }
}

.appeal-title {
    font-family: 'Outfit', sans-serif;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    letter-spacing: -0.2px;
}

.appeal-body {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.65;
}

.appeal-body strong {
    color: #f0abfc;
    font-weight: 600;
}

.appeal-upi-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: linear-gradient(135deg, #ec4899 0%, #a855f7 100%);
    color: #fff;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 13px;
    font-weight: 700;
    padding: 9px 16px;
    border-radius: 8px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: 0 4px 14px rgba(236, 72, 153, 0.35);
    width: 100%;
    justify-content: center;
    letter-spacing: 0.01em;
}

.appeal-upi-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(236, 72, 153, 0.5);
    filter: brightness(1.08);
}

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

/* ── Result area UPI button (after download/copy) ─── */
.result-support-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(236, 72, 153, 0.08);
    border: 1px solid rgba(236, 72, 153, 0.3);
    color: #f9a8d4;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 12.5px;
    font-weight: 600;
    padding: 9px 16px;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s;
    width: 100%;
    justify-content: center;
    letter-spacing: 0.01em;
}

.result-support-btn:hover {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.18), rgba(168, 85, 247, 0.18));
    border-color: rgba(236, 72, 153, 0.55);
    color: #fce7f3;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(236, 72, 153, 0.2);
}

/* ── Amazon Affiliate Banner Card ───────────── */
.amazon-banner-card {
    width: 100%;
    background: rgba(255, 153, 0, 0.05);
    border: 1px solid rgba(255, 153, 0, 0.2);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0;
    transition: border-color 0.25s;
}

.amazon-banner-card:hover {
    border-color: rgba(255, 153, 0, 0.4);
}

.amazon-banner-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid rgba(255, 153, 0, 0.12);
}

.amazon-banner-title {
    font-family: 'Outfit', sans-serif;
    font-size: 12px;
    font-weight: 700;
    color: #fbbf24;
    display: flex;
    align-items: center;
    gap: 5px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.amazon-banner-title svg {
    color: #f59e0b;
    flex-shrink: 0;
}

.sponsored-badge {
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 2px 7px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.amazon-banner-link {
    display: block;
    line-height: 0;
}

.amazon-banner-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: opacity 0.2s;
}

.amazon-banner-link:hover .amazon-banner-img {
    opacity: 0.9;
}

/* ── Ad zones ────────────────────────────── */
.ad-zone {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ad-zone-square {
    min-height: 260px;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}

.ad-zone-horizontal {
    min-height: 80px;
    width: 100%;
}

.ad-zone-auto {
    min-height: 90px;
    width: 100%;
}

.ad-placeholder-text {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 8px;
}

/* ── Right preview area ──────────────────── */
.preview-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 16px;
    gap: 16px;
    background: rgba(0, 0, 0, 0.2);
}

.qr-placeholder {
    width: 100%;
    max-width: 320px;
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.02);
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    color: var(--text-secondary);
    transition: all 0.3s;
}

.qr-placeholder:hover {
    border-color: rgba(168, 85, 247, 0.4);
    background: rgba(168, 85, 247, 0.02);
}

.qr-placeholder svg {
    color: rgba(255, 255, 255, 0.2);
    width: 48px;
    height: 48px;
}

.qr-placeholder p {
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    padding: 0 16px;
}

#qrResult {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    width: 100%;
}

#qrResult img {
    max-width: min(320px, 85vw);
    width: 100%;
    border-radius: 16px;
    border: 8px solid #fff;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: #fff;
    display: block;
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.result-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.action-btn {
    padding: 11px 18px;
    border-radius: 10px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    flex: 1;
    justify-content: center;
    min-width: 120px;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.action-btn.primary {
    background: var(--primary-gradient);
    color: #FFF;
    border: none;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
}

.action-btn.primary:hover {
    box-shadow: 0 6px 16px rgba(168, 85, 247, 0.4);
}

.meta-info {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--input-border);
    width: 100%;
    max-width: 320px;
    word-break: break-all;
}

.meta-info strong {
    color: var(--text-primary);
}

/* ── Footer ─────────────────────────────── */
.site-footer {
    background: rgba(11, 15, 25, 0.6);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--surface-border);
    padding: 18px 16px;
    margin-top: auto;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
}

.footer-content a {
    color: #c084fc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-content a:hover {
    color: #e879f9;
}

/* ─────────────────────────────────────────
           MOBILE: ≤ 767px
        ───────────────────────────────────────── */
@media (max-width: 767px) {

    /* Header */
    .site-header {
        padding: 0 14px;
    }

    .header-content {
        height: 52px;
    }

    /* Show hamburger, hide inline nav */
    .nav-toggle {
        display: flex;
    }

    /* Mobile nav drawer — slides down from below the header */
    .site-nav {
        position: fixed;
        top: 52px;           /* anchored right below the header bar */
        left: 0;
        right: 0;
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--surface-border);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        /* Hidden: slide up behind the header and fully invisible */
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    visibility 0s 0.32s;     /* delay hiding visibility until transition ends */
        z-index: 99;         /* below header (100) so it appears underneath it */
        pointer-events: none;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    }

    .site-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                    visibility 0s 0s;        /* make visible immediately on open */
    }

    .site-nav a {
        font-size: 15px;
        padding: 14px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        display: block;
    }

    .site-nav a:first-child {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .site-nav a::after {
        display: none;
    }

    .site-nav a:last-child {
        border-bottom: none;
    }

    /* Main */
    main {
        padding: 16px 12px;
        gap: 14px;
    }

    /* Panel */
    .panel {
        padding: 16px 14px;
        gap: 14px;
    }

    /* Preview */
    .preview-area {
        padding: 16px 12px;
        gap: 14px;
    }

    /* QR placeholder fills width nicely */
    .qr-placeholder {
        max-width: 100%;
    }

    #qrResult img {
        max-width: min(280px, 75vw);
    }

    /* Color row stays 2-col on phones */
    .color-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    /* Size presets equal width tiles */
    .size-presets {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .preset-btn {
        flex: none;
        width: 100%;
    }

    /* Action buttons row */
    .result-actions {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        min-width: 0;
        flex: none;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 4px;
        font-size: 12px;
    }

    /* Ads: full width on mobile */
    .ad-zone-square {
        max-width: 100%;
    }
}

/* ── Very small phones ≤ 380px ───── */
@media (max-width: 380px) {
    .color-row {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 22px;
    }
}

/* ── Tablet: 768px – 899px ────────── */
@media (min-width: 768px) and (max-width: 899px) {
    .site-header {
        padding: 0 24px;
    }

    main {
        padding: 24px 20px;
        gap: 18px;
    }

    .panel {
        padding: 22px 20px;
    }

    .preview-area {
        padding: 22px 18px;
    }

    .qr-placeholder {
        max-width: 360px;
    }
}

/* ── Desktop: ≥ 900px ─────────────── */
@media (min-width: 900px) {
    .site-header {
        padding: 0 40px;
        z-index: 100;
    }

    .header-content {
        height: 60px;
    }

    .site-logo {
        font-size: 22px;
    }

    main {
        padding: 36px 24px;
        gap: 24px;
    }

    .panel {
        padding: 28px 24px;
        border-right: 1px solid var(--surface-border);
        border-bottom: none;
        gap: 20px;
    }

    .preview-area {
        padding: 28px 24px;
        gap: 20px;
    }

    .qr-placeholder {
        max-width: 340px;
    }

    #qrResult img {
        max-width: 300px;
    }
}

/* ── Large desktop: ≥ 1100px ────── */
@media (min-width: 1100px) {
    .panel {
        padding: 32px 28px;
    }

    .preview-area {
        padding: 32px 28px;
    }
}

/* ── PWA Install Banner ─────────────────── */
#pwaBanner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    padding: 12px 16px;
    background: rgba(11, 15, 25, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(168, 85, 247, 0.3);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.4);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.pwa-banner-inner {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.pwa-banner-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.pwa-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #6366f1, #a855f7, #ec4899);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.35);
}

.pwa-banner-title {
    font-size: 14px;
    font-weight: 600;
    color: #f8fafc;
}

.pwa-banner-sub {
    font-size: 12px;
    color: #94a3b8;
    margin-top: 2px;
}

.pwa-banner-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.pwa-btn-dismiss {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: transparent;
    color: #94a3b8;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.pwa-btn-dismiss:hover {
    color: #f8fafc;
    border-color: rgba(255, 255, 255, 0.25);
}

.pwa-btn-install {
    padding: 8px 18px;
    border-radius: 8px;
    border: none;
    background: linear-gradient(135deg, #6366f1, #a855f7);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 3px 10px rgba(168, 85, 247, 0.4);
    font-family: 'Plus Jakarta Sans', sans-serif;
}

.pwa-btn-install:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(168, 85, 247, 0.5);
}