/* ========================================
   LANDING PAGE PETHUB - STYLE
   ======================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1a1a2e;
    line-height: 1.6;
    overflow-x: hidden;
    background: #ffffff;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #ffb23e;
    background: rgba(255, 178, 62, 0.1);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #041f3f;
    line-height: 1.2;
    margin-bottom: 16px;
    font-family: 'Poppins', sans-serif;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #5a6a7a;
    max-width: 640px;
    margin: 0 auto 48px;
    text-align: center;
}

.text-center { text-align: center; }

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 14px 32px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    line-height: 1.2;
}

.btn-primary {
    background: linear-gradient(135deg, #ffb23e 0%, #ff9a1a 100%);
    color: #041f3f;
    box-shadow: 0 8px 24px rgba(255, 178, 62, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 178, 62, 0.45);
}

.btn-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: #ffb23e;
    color: #ffb23e;
}

.btn-dark {
    background: #041f3f;
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(4, 31, 63, 0.25);
}

.btn-dark:hover {
    background: #0a2a5e;
    transform: translateY(-2px);
}

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s ease;
    padding: 16px 0;
}

.navbar.scrolled {
    background: rgba(4, 31, 63, 0.97);
    backdrop-filter: blur(12px);
    padding: 10px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.navbar-brand img {
    height: 40px;
    width: auto;
}

.navbar-brand span {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: #ffffff;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ffb23e;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #ffffff;
}

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

.nav-links .btn {
    padding: 10px 24px;
    font-size: 0.8125rem;
}

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

.hamburger span {
    width: 24px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === HERO === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #041f3f 0%, #0a2a5e 40%, #133774 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 178, 62, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 178, 62, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

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

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 178, 62, 0.12);
    border: 1px solid rgba(255, 178, 62, 0.2);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #ffb23e;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-title span {
    background: linear-gradient(135deg, #ffb23e, #ffcc80);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: #ffb23e;
}

.hero-stat p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

/* Hero image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 540px;
}

.hero-mockup {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #041f3f;
    animation: float 3s ease-in-out infinite;
}

.floating-card .card-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, #ffb23e, #ff9a1a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.floating-card-1 { top: 10%; right: -10%; animation-delay: 0s; }
.floating-card-2 { bottom: 15%; left: -10%; animation-delay: 1.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* === PROBLEMS SECTION === */
.problems {
    background: #f8f9fc;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.problem-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: rgba(255, 178, 62, 0.2);
}

.problem-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(255, 178, 62, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.problem-card h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #041f3f;
    margin-bottom: 8px;
}

.problem-card p {
    font-size: 0.875rem;
    color: #5a6a7a;
    line-height: 1.6;
}

/* === SOLUTION SECTION === */
.solution {
    background: #ffffff;
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.solution-image {
    position: relative;
}

.solution-image-wrapper {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(4, 31, 63, 0.12);
    aspect-ratio: 4/3;
    background: #f0f4f8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-image-wrapper .placeholder-icon {
    font-size: 4rem;
    color: rgba(4, 31, 63, 0.1);
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.solution-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.solution-check {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffb23e, #ff9a1a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #041f3f;
    font-weight: 700;
    font-size: 0.75rem;
    margin-top: 2px;
}

.solution-item h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.0625rem;
    font-weight: 600;
    color: #041f3f;
    margin-bottom: 4px;
}

.solution-item p {
    font-size: 0.875rem;
    color: #5a6a7a;
    line-height: 1.6;
}

/* === BENEFITS SECTION === */
.benefits {
    background: #f8f9fc;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.benefit-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 36px 28px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #ffb23e, #ffcc80);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.benefit-card:hover::before {
    transform: scaleX(1);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(4, 31, 63, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.375rem;
}

.benefit-card:nth-child(1) .benefit-icon { background: rgba(255, 107, 107, 0.1); }
.benefit-card:nth-child(2) .benefit-icon { background: rgba(46, 213, 115, 0.1); }
.benefit-card:nth-child(3) .benefit-icon { background: rgba(255, 178, 62, 0.1); }
.benefit-card:nth-child(4) .benefit-icon { background: rgba(72, 149, 239, 0.1); }
.benefit-card:nth-child(5) .benefit-icon { background: rgba(165, 94, 234, 0.1); }
.benefit-card:nth-child(6) .benefit-icon { background: rgba(38, 194, 199, 0.1); }

.benefit-card h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.0625rem;
    font-weight: 600;
    color: #041f3f;
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.875rem;
    color: #5a6a7a;
    line-height: 1.6;
}

/* === HOW IT WORKS === */
.how-it-works {
    background: #ffffff;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, #ffb23e 0%, rgba(255, 178, 62, 0.2) 100%);
    z-index: 0;
}

.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffb23e, #ff9a1a);
    color: #041f3f;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: 0 8px 24px rgba(255, 178, 62, 0.3);
}

.step-card h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #041f3f;
    margin-bottom: 12px;
}

.step-card p {
    font-size: 0.9375rem;
    color: #5a6a7a;
    line-height: 1.6;
    max-width: 320px;
    margin: 0 auto;
}

/* === DEMO SECTION === */
.demo {
    background: #f8f9fc;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.demo-item {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    background: #ffffff;
    transition: all 0.3s ease;
}

.demo-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.demo-item-image {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, #e8edf3, #d5dde7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.demo-item-image .placeholder-content {
    text-align: center;
    color: #8a9baa;
}

.demo-item-image .placeholder-content .demo-icon {
    font-size: 3rem;
    margin-bottom: 8px;
    display: block;
}

.demo-item-image .placeholder-content p {
    font-size: 0.8125rem;
}

.demo-item-caption {
    padding: 16px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #041f3f;
    text-align: center;
}

.demo-item-wide {
    grid-column: span 2;
}

.demo-item-wide .demo-item-image {
    aspect-ratio: 16/7;
}

/* === RESULTS SECTION === */
.results {
    background: linear-gradient(135deg, #041f3f 0%, #0a2a5e 100%);
    color: #ffffff;
}

.results .section-title {
    color: #ffffff;
}

.results .section-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.result-card {
    text-align: center;
    padding: 32px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
}

.result-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 178, 62, 0.2);
}

.result-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2.75rem;
    font-weight: 800;
    color: #ffb23e;
    line-height: 1;
    margin-bottom: 8px;
}

.result-number .suffix {
    font-size: 1.5rem;
    font-weight: 600;
}

.result-label {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.4;
}

/* === TESTIMONIALS === */
.testimonials {
    background: #ffffff;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: #f8f9fc;
    border-radius: 16px;
    padding: 32px 28px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

.testimonial-stars {
    color: #ffb23e;
    font-size: 0.875rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.9375rem;
    color: #2d3a4a;
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e0e5ec, #c8d0da);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #5a6a7a;
    font-weight: 600;
}

.testimonial-author-info h5 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #041f3f;
}

.testimonial-author-info p {
    font-size: 0.75rem;
    color: #8a9baa;
}

/* === FAQ SECTION === */
.faq {
    background: #f8f9fc;
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: #041f3f;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: 'Inter', sans-serif;
    transition: color 0.3s ease;
}

.faq-item.active .faq-question {
    color: #ffb23e;
}

.faq-icon {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 50%;
    background: rgba(4, 31, 63, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 0.75rem;
    color: #041f3f;
}

.faq-item.active .faq-icon {
    background: #ffb23e;
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 0.9375rem;
    color: #5a6a7a;
    line-height: 1.7;
}

/* === CTA FINAL === */
.cta-final {
    position: relative;
    background: linear-gradient(135deg, #041f3f 0%, #0a2a5e 50%, #133774 100%);
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 178, 62, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-content {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.75rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.15;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 36px;
}

.cta-content .btn {
    font-size: 1.0625rem;
    padding: 16px 40px;
}

.cta-content .btn-primary {
    box-shadow: 0 12px 36px rgba(255, 178, 62, 0.4);
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.cta-trust span {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* === FOOTER === */
.footer {
    background: #02152c;
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand img {
    height: 36px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h5 {
    font-family: 'Poppins', sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #ffb23e;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.3);
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-social a:hover {
    background: #ffb23e;
    color: #041f3f;
}

/* === BACK TO TOP === */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #ffb23e;
    color: #041f3f;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    box-shadow: 0 4px 16px rgba(255, 178, 62, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 178, 62, 0.4);
}

/* === RESPONSIVE === */

/* Tablet */
@media (max-width: 1024px) {
    .hero-title { font-size: 2.75rem; }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content { max-width: 100%; text-align: center; }
    .hero-subtitle { max-width: 100%; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image-wrapper { max-width: 480px; margin: 0 auto; }

    .problems-grid { grid-template-columns: repeat(2, 1fr); }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .results-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    
    .solution-grid { gap: 48px; }
    .steps-grid::before { display: none; }
    .floating-card { display: none; }
}

/* Mobile */
@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 1.75rem; }
    .section-subtitle { font-size: 1rem; margin-bottom: 32px; }

    .navbar { padding: 12px 0; }
    .navbar.scrolled { padding: 8px 0; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #041f3f;
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 20px;
        transition: right 0.3s ease;
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2);
        align-items: flex-start;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a { font-size: 1rem; }

    .hamburger { display: flex; }

    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }
    
    .hero-mockup { aspect-ratio: 4/3; }

    .problems-grid { grid-template-columns: 1fr; }
    .solution-grid { grid-template-columns: 1fr; gap: 32px; }
    .benefits-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; gap: 32px; }
    .demo-grid { grid-template-columns: 1fr; }
    .demo-item-wide { grid-column: span 1; }
    .results-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .cta-content h2 { font-size: 1.75rem; }
    .cta-trust { flex-direction: column; align-items: center; gap: 16px; }
    .result-card { padding: 24px 12px; }
    .result-number { font-size: 2rem; }
}

/* Small mobile */
@media (max-width: 480px) {
    .hero-title { font-size: 1.625rem; }
    .results-grid { grid-template-columns: 1fr; }
    .navbar-brand span { font-size: 1rem; }
    .navbar-brand img { height: 32px; }
}