/* ==================== VARIABLES ==================== */
:root {
    --primary-blue: #0F63DC;
    --primary-indigo: #0b4fc2;
    --primary-cyan: #2ca8ff;
    --primary-blue-light: #E8F0FF;
    --primary-soft: #f3f8ff;
    --dark-charcoal: #1A1A1A;
    --ink-900: #111827;
    --text-gray: #4B5563;
    --text-soft: #667085;
    --light-gray: #F5F7FA;
    --border-gray: #E5E7EB;
    --white: #FFFFFF;
    --success-green: #10B981;
    --error-red: #EF4444;

    --font-sans: 'Manrope', 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', 'Manrope', sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-out;
}

/* ==================== GLOBAL STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text-gray);
    background:
        radial-gradient(circle at 10% -10%, rgba(44, 168, 255, 0.18), transparent 36%),
        radial-gradient(circle at 100% 0%, rgba(15, 99, 220, 0.14), transparent 32%),
        var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4 {
    color: var(--dark-charcoal);
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.6rem;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    font-size: 1rem;
    color: var(--text-gray);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    opacity: 0.8;
}

/* ==================== BUTTONS ==================== */
.btn {
    padding: 12px 24px;
    border: 2px solid var(--primary-blue);
    background: transparent;
    color: var(--primary-blue);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    font-family: var(--font-sans);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 99, 220, 0.2);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    color: var(--white);
    border-color: var(--primary-blue);
}

.btn.btn-primary,
a.btn.btn-primary,
.btn.btn-primary:visited,
.btn.btn-primary:hover,
.btn.btn-primary:focus,
.btn.btn-primary:active {
    color: var(--white) !important;
}

.btn-primary:hover {
    box-shadow: 0 12px 26px rgba(15, 99, 220, 0.35);
}

.btn-secondary {
    border-color: var(--border-gray);
    color: var(--dark-charcoal);
    background: var(--white);
}

.btn-secondary:hover {
    background: var(--light-gray);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    box-shadow: none;
}

.btn-large {
    padding: 14px 32px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

.btn-copy {
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary-blue), #0a47aa);
    color: var(--white);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
    font-size: 0.9rem;
}

.btn-copy:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 99, 220, 0.2);
}

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

/* ==================== NAVBAR ==================== */
.navbar {
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--ink-900);
}

.logo-placeholder {
    width: 42px;
    height: 42px;
    /* background: var(--primary-blue-light); */
    /* border: 2px solid var(--primary-blue); */
    /* border-radius: 12px; */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-placeholder img{
    width: 100%;
    height: 100%;
}

.brand-name {
    background: linear-gradient(135deg, var(--primary-blue), #0a47aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-gray);
    font-weight: 500;
    transition: var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--dark-charcoal);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.mobile-menu {
    display: none;
    background: var(--light-gray);
    padding: 16px;
    flex-direction: column;
    gap: 12px;
}

.mobile-menu a {
    padding: 12px;
    border-radius: 6px;
    transition: var(--transition-fast);
}

.mobile-menu a:hover {
    background: var(--white);
}

/* ==================== HERO SECTION ==================== */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(15, 99, 220, 0.04) 0%, rgba(44, 168, 255, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.bg-orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(2px);
    pointer-events: none;
}

.orb-1 {
    width: 240px;
    height: 240px;
    background: radial-gradient(circle at 30% 30%, rgba(44, 168, 255, 0.4), rgba(15, 99, 220, 0.06));
    top: -70px;
    right: 8%;
}

.orb-2 {
    width: 160px;
    height: 160px;
    background: radial-gradient(circle at 30% 30%, rgba(15, 99, 220, 0.24), rgba(44, 168, 255, 0.05));
    bottom: 20px;
    left: 12%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3.7rem;
    margin-bottom: 20px;
    color: var(--ink-900);
    line-height: 1.1;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-blue), #0a47aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-soft);
    margin-bottom: 16px;
    line-height: 1.6;
}

.hero-cta-hint {
    font-size: 0.95rem;
    color: var(--primary-indigo);
    font-weight: 500;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.hero-signin-hint {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.hero-signin-hint a {
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: underline;
}

.hero-visual {
    animation: fadeInRight 0.8s ease-out 0.2s both;
}

.link-animation {
    position: relative;
}

.animation-container {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 20px 45px rgba(13, 38, 76, 0.13);
    animation: slideUp 0.8s ease-out 0.4s both;
}

.url-box {
    flex: 1;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: var(--transition);
}

.url-long {
    background: #f0f0f0;
    color: #666;
    border: 1px solid #e0e0e0;
}

.url-short {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px 14px;
}

.qr-mini {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    object-fit: contain;
    display: block;
    border-radius: 6px;
}

.arrow-animation {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 1.5rem;
    animation: pulse-arrow 2s ease-in-out infinite;
}

@keyframes pulse-arrow {
    0%, 100% {
        opacity: 0.6;
        transform: translateX(0);
    }
    50% {
        opacity: 1;
        transform: translateX(4px);
    }
}

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

/* ==================== ANIMATIONS ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.js-ready .stagger-group .reveal-item {
    opacity: 0;
    transform: translateY(24px) scale(0.985);
    transition: opacity 0.65s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.65s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform, opacity;
}

.js-ready .stagger-group .reveal-item.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ==================== FEATURES SECTION ==================== */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 251, 255, 0.98));
}

.section-title {
    text-align: center;
    margin-bottom: 16px;
    color: var(--dark-charcoal);
}

.section-subtitle {
    text-align: center;
    color: var(--text-soft);
    font-size: 1.2rem;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-marquee {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 8px 0 12px;
    mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.features-track {
    display: flex;
    gap: 24px;
    width: max-content;
    animation: features-marquee-scroll 24s linear infinite;
}

.features-marquee:hover .features-track {
    animation-play-state: paused;
}

.features-set {
    display: flex;
    gap: 24px;
    flex-shrink: 0;
}

@keyframes features-marquee-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(calc(-50% - 12px));
    }
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    min-height: 280px;
    width: clamp(250px, 24vw, 295px);
}

.feature-card:hover {
    transform: translateY(-5px) scale(1.01);
    border-color: var(--primary-blue);
    box-shadow: 0 20px 40px rgba(15, 99, 220, 0.15);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-blue-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-blue);
    font-size: 2rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--primary-blue);
    color: var(--white);
    transform: scale(1.1);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--dark-charcoal);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
    font-size: 0.95rem;
    flex-grow: 1;
}

/* ==================== HOW IT WORKS SECTION ==================== */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(180deg, #f2f7ff 0%, #eef4ff 100%);
}

.steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center;
}

.step {
    text-align: center;
    position: relative;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #e9f2ff 0%, #deebff 100%);
    border-radius: 16px;
    border: 1px solid rgba(15, 99, 220, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--primary-blue);
    transition: var(--transition);
}

.step-symbol {
    font-size: 34px;
    color: var(--primary-indigo);
    line-height: 1;
}

.step:hover .step-icon {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    transform: scale(1.1);
}

.step:hover .step-symbol {
    color: var(--white);
}

.step-icon svg {
    width: 28px;
    height: 28px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 16px;
    transition: var(--transition);
}

.step:hover .step-number {
    transform: scale(1.15);
    box-shadow: 0 8px 16px rgba(15, 99, 220, 0.3);
}

.step h3 {
    margin-bottom: 8px;
    color: var(--dark-charcoal);
    font-size: 1.2rem;
}

.step p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.step-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 20px;
    grid-column: span 1;
}

.step-connector svg {
    width: 100%;
    height: 100%;
}

/* ==================== DEMO SECTION ==================== */
.demo {
    padding: 100px 0;
    background: var(--white);
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
    align-items: center;
}

.demo-left h3 {
    margin-bottom: 24px;
    color: var(--dark-charcoal);
}

.demo-form-wrapper {
    position: relative;
    border: 1px solid var(--border-gray);
    border-radius: 16px;
    padding: 24px;
    background: var(--white);
}

.login-required-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #FEF3C7;
    color: #92400E;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.demo-form {
    opacity: 0.6;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-charcoal);
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: var(--transition-fast);
    background: var(--light-gray);
    cursor: not-allowed;
}

.form-group input:disabled {
    background: #f0f0f0;
    opacity: 0.7;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

.form-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
}

.result-card-preview {
    background: var(--white);
    border: 2px solid var(--primary-blue);
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 16px 50px rgba(15, 99, 220, 0.15);
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

.result-header {
    margin-bottom: 28px;
}

.result-header h3 {
    margin-bottom: 4px;
    color: var(--dark-charcoal);
}

.result-subtext {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.result-link-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border-gray);
}

.link-display {
    flex: 1;
    padding: 12px 16px;
    background: var(--primary-blue-light);
    border: 1px solid var(--primary-blue);
    border-radius: 10px;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.btn-copy[disabled],
.btn-copy:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.result-qr-preview {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border-gray);
}

.result-qr-preview p {
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--dark-charcoal);
}

.qr-stage {
    width: 170px;
    height: 170px;
    border-radius: 18px;
    background: linear-gradient(145deg, #f8fbff, #edf4ff);
    border: 1px solid rgba(15, 99, 220, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}

.qr-preview {
    width: 126px;
    height: 126px;
    margin: 0;
    object-fit: contain;
    display: block;
}

.download-qr {
    display: inline-block;
    color: var(--primary-blue);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: underline;
    opacity: 0.6;
    cursor: not-allowed;
}

.result-stats-preview {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-inline: auto;
    margin-top: auto;
    width:80%;
    /* max-width: 170px; */
}

.stat-preview {
    text-align: center;
    padding: 16px;
    background: #f5f8fe;
    border-radius: 12px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 4px;
}

.demo-cta {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(140deg, #f6f9ff 0%, #ebf3ff 100%);
    border-radius: 20px;
    border: 1px solid rgba(15, 99, 220, 0.15);
    box-shadow: 0 10px 30px rgba(15, 99, 220, 0.08);
}

.demo-cta p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 20px;
}

/* ==================== FAQ SECTION ==================== */
.faq {
    padding: 100px 0;
    background: var(--white);
}

.faq-header {
    text-align: center;
    margin-bottom: 60px;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border-gray);
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    cursor: pointer;
    transition: var(--transition-fast);
    background: transparent;
}

.faq-question:hover {
    background: transparent;
}

.faq-question h3 {
    margin: 0;
    color: var(--dark-charcoal);
    flex: 1;
    font-size: 1.05rem;
    font-weight: 600;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--primary-blue);
    transition: var(--transition-fast);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    overflow: hidden;
    transition: grid-template-rows 0.42s cubic-bezier(0.2, 0.8, 0.2, 1), padding 0.32s ease;
    padding: 0;
}

.faq-item.active .faq-answer {
    grid-template-rows: 1fr;
    padding: 0 0 20px 0;
}

.faq-answer p {
    color: var(--text-gray);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.28s ease, transform 0.32s ease;
}

.faq-item.active .faq-answer p {
    opacity: 1;
    transform: translateY(0);
}

.faq-answer code {
    background: var(--light-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-blue);
}

/* ==================== CTA SECTION ==================== */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-indigo) 100%);
    text-align: center;
    color: var(--white);
}

.cta h2 {
    color: var(--white);
    margin-bottom: 16px;
    font-size: 2.5rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn {
    background: var(--white);
    color: var(--primary-blue);
    border-color: var(--white);
}

.cta .btn:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.cta a{
    text-decoration: none;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--dark-charcoal);
    color: #AAABAC;
    padding: 60px 0 20px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-section p {
    color: #AAABAC;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: #AAABAC;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-icon {
    display: inline-block;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    transition: var(--transition-fast);
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: #AAABAC;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .nav-links {
        display: none;
    }

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

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

    .demo-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .step-connector {
        display: none;
    }

    .features-marquee {
        mask-image: none;
        overflow-x: auto;
        padding-bottom: 6px;
    }

    .features-track {
        animation-duration: 28s;
    }

    .feature-card {
        width: 260px;
    }

    .section-subtitle {
        font-size: 1.1rem;
    }

    .qr-stage {
        width: 156px;
        height: 156px;
    }

    .qr-preview {
        width: 116px;
        height: 116px;
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta p {
        font-size: 1rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .faq-list {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 16px;
    }

    .hero-cta-hint {
        font-size: 0.85rem;
        margin-bottom: 24px;
    }

    .logo-placeholder {
        width: 36px;
        height: 36px;
        font-size: 0.65rem;
    }

    .brand-name {
        font-size: 1.3rem;
    }

    .nav-links {
        flex-direction: column;
    }

    .features {
        padding: 60px 0;
    }

    .how-it-works {
        padding: 60px 0;
    }

    .demo {
        padding: 60px 0;
    }

    .demo-left h3,
    .demo-right h3 {
        font-size: 1.3rem;
    }

    .faq {
        padding: 60px 0;
    }

    .cta {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .result-link-preview {
        flex-direction: column;
        align-items: stretch;
    }

    .result-stats-preview {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .animation-container {
        flex-direction: column;
        gap: 12px;
    }

    .step-icon {
        width: 58px;
        height: 58px;
    }

    .step-symbol {
        font-size: 30px;
    }

    .url-box {
        width: 100%;
    }

    .qr-preview {
        width: 120px;
        height: 120px;
    }

    .btn-large {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .hero-signin-hint {
        font-size: 0.85rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .login-required-badge {
        font-size: 0.85rem;
        padding: 10px 12px;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.no-scroll {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .js-ready .stagger-group .reveal-item,
    .js-ready .stagger-group .reveal-item.revealed {
        opacity: 1;
        transform: none;
        transition: none;
    }
}