/* ============================================
   YẾN SÀO THIÊN PHÚC — PREMIUM LANDING PAGE
   Design System & Styles
   ============================================ */

/* === CSS VARIABLES === */
:root {
    /* Colors — Luxury Gold & Dark palette */
    --gold-50:  #FFF9E6;
    --gold-100: #FFF0B3;
    --gold-200: #FFE680;
    --gold-300: #FFD94D;
    --gold-400: #FFCC1A;
    --gold-500: #D4A017;
    --gold-600: #B8860B;
    --gold-700: #8B6914;
    --gold-800: #5F4B1D;
    --gold-900: #332A11;

    --dark-50:  #F5F3EF;
    --dark-100: #E8E4DB;
    --dark-200: #C9C2B4;
    --dark-300: #A99F8D;
    --dark-400: #6B6152;
    --dark-500: #3D3628;
    --dark-600: #2A2419;
    --dark-700: #1E1A12;
    --dark-800: #15120C;
    --dark-900: #0D0B07;

    --cream-50:  #FFFDF7;
    --cream-100: #FFF9EB;
    --cream-200: #FFF3D6;

    --red-accent: #C0392B;
    --green-accent: #27AE60;

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #D4A017 0%, #F2D06B 50%, #D4A017 100%);
    --gradient-gold-text: linear-gradient(135deg, #D4A017 0%, #F2D06B 40%, #E6B422 100%);
    --gradient-dark: linear-gradient(180deg, #0D0B07 0%, #1E1A12 100%);
    --gradient-hero: linear-gradient(135deg, #0D0B07 0%, #1A1508 40%, #15120C 100%);
    --gradient-card: linear-gradient(145deg, rgba(212,160,23,0.08) 0%, rgba(255,255,255,0.02) 100%);
    --gradient-cta: linear-gradient(135deg, #1A1508 0%, #2A2419 50%, #332A11 100%);

    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-py: clamp(4rem, 8vw, 7rem);
    --container-max: 1200px;
    --container-px: clamp(1rem, 4vw, 2rem);

    /* Borders & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --shadow-xl: 0 16px 64px rgba(0,0,0,0.2);
    --shadow-gold: 0 4px 30px rgba(212,160,23,0.25);
    --shadow-gold-lg: 0 8px 50px rgba(212,160,23,0.35);

    /* Transitions */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: 0.2s var(--ease-out);
    --transition-normal: 0.3s var(--ease-out);
    --transition-slow: 0.5s var(--ease-out);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark-600);
    background: var(--cream-50);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul { list-style: none; }

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-px);
}

/* === UTILITY === */
.text-gradient {
    background: var(--gradient-gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-light {
    background: linear-gradient(135deg, #FFD94D 0%, #F2D06B 50%, #FFCC1A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === SECTION HEADER === */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto clamp(2.5rem, 5vw, 4rem);
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--gold-500);
    background: var(--gold-50);
    padding: 6px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
    border: 1px solid var(--gold-100);
}

.section-tag--light {
    background: rgba(255,255,255,0.1);
    color: var(--gold-300);
    border-color: rgba(255,255,255,0.15);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-700);
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--dark-300);
    line-height: 1.8;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-gold);
    color: var(--dark-900);
    border-color: var(--gold-500);
    box-shadow: var(--shadow-gold);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold-lg);
    filter: brightness(1.08);
}

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

.btn--outline {
    background: transparent;
    color: var(--gold-300);
    border-color: var(--gold-500);
}

.btn--outline:hover {
    background: rgba(212,160,23,0.1);
    color: var(--gold-200);
}

.btn--lg {
    padding: 16px 40px;
    font-size: 1rem;
}

.btn--full {
    width: 100%;
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
    background: transparent;
}

.header--scrolled {
    background: rgba(13,11,7,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(0,0,0,0.3);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.logo__image {
    height: 44px;
    width: auto;
    display: block;
    object-fit: contain;
    border-radius: var(--radius-sm);
    transition: opacity var(--transition-fast);
}

.logo__image:hover {
    opacity: 0.85;
}

.logo__image--footer {
    height: 60px;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.nav__link:hover {
    color: white;
    background: rgba(255,255,255,0.08);
}

.nav__link--cta {
    background: var(--gradient-gold);
    color: var(--dark-900) !important;
    font-weight: 600;
    padding: 10px 24px;
    box-shadow: var(--shadow-gold);
}

.nav__link--cta:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-gold-lg);
    background: var(--gradient-gold) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.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: var(--gradient-hero);
    overflow: hidden;
    padding: 100px 0 60px;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 800px 600px at 20% 50%, rgba(212,160,23,0.08) 0%, transparent 70%),
        radial-gradient(ellipse 600px 400px at 80% 30%, rgba(212,160,23,0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero__particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero__particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--gold-400);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 8s infinite;
}

@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-20vh) scale(1); }
}

.hero__content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212,160,23,0.12);
    border: 1px solid rgba(212,160,23,0.2);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--gold-300);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background: var(--gold-400);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 700;
    line-height: 1.15;
    color: white;
    margin-bottom: 1.2rem;
}

.hero__subtitle {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: rgba(255,255,255,0.65);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero__stats {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 20px 28px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.hero__stat {
    text-align: center;
    flex: 1;
}

.hero__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold-400);
    line-height: 1;
}

.hero__stat-suffix {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gold-400);
}

.hero__stat-label {
    display: block;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
}

.hero__stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    margin: 0 12px;
}

.hero__image-wrapper {
    position: absolute;
    right: -2%;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    max-width: 580px;
    z-index: 1;
}

.hero__image {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero__image-glow {
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, rgba(212,160,23,0.15) 0%, transparent 70%);
    z-index: -1;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.3);
    font-size: 0.75rem;
    letter-spacing: 1px;
    z-index: 2;
}

.hero__scroll-line {
    width: 1px;
    height: 30px;
    background: linear-gradient(to bottom, var(--gold-500), transparent);
    animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
    0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
    100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* === PROBLEMS SECTION === */
.problems {
    padding: var(--section-py) 0;
    background: var(--cream-50);
}

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

.problem-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--dark-50);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gold-100);
}

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

.problem-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FFF0B3 0%, #FFE680 100%);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--gold-700);
}

.problem-card__title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-700);
    margin-bottom: 10px;
}

.problem-card__desc {
    font-size: 0.9rem;
    color: var(--dark-300);
    line-height: 1.7;
}

/* === SOLUTION SECTION === */
.solution {
    padding: var(--section-py) 0;
    background: var(--dark-50);
}

.solution__wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.solution__image-container {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.solution__image {
    width: 100%;
    display: block;
    transition: transform 0.6s var(--ease-out);
}

.solution__image-container:hover .solution__image {
    transform: scale(1.03);
}

.solution__image-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(13,11,7,0.85);
    backdrop-filter: blur(10px);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid rgba(212,160,23,0.3);
}

.solution__badge-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--gold-400);
    line-height: 1;
}

.solution__badge-text {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.solution__text {
    font-size: 1rem;
    color: var(--dark-400);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.solution__checklist {
    margin: 1.5rem 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.solution__check-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--dark-500);
}

.solution__check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--gold-100);
    color: var(--gold-700);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* === PRODUCTS SECTION === */
.products {
    padding: var(--section-py) 0;
    background: var(--cream-50);
}

/* --- Tabs --- */
.products__tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.products__tab {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    border: 2px solid var(--gold-200);
    background: white;
    color: var(--dark-400);
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: 0.3px;
}

.products__tab:hover {
    border-color: var(--gold-400);
    color: var(--gold-600);
    background: var(--gold-50);
}

.products__tab--active {
    background: var(--gradient-gold);
    border-color: var(--gold-500);
    color: var(--dark-900);
    box-shadow: var(--shadow-gold);
}

/* --- Panels --- */
.products__panel {
    display: none;
}

.products__panel--active {
    display: block;
}

/* --- Grid variants --- */
.products__grid {
    display: grid;
    gap: 24px;
}

.products__grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

.products__grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.products__grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

/* --- Product card base --- */
.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--dark-50);
    transition: all var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gold-200);
}

.product-card--featured {
    border-color: var(--gold-300);
    box-shadow: var(--shadow-gold);
}

/* --- Badge --- */
.product-card__badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--red-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card__badge--new {
    background: var(--green-accent);
}

/* --- Image --- */
.product-card__image-wrap {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--dark-50);
}

.product-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease-out);
}

.product-card:hover .product-card__image {
    transform: scale(1.08);
}

/* --- Content --- */
.product-card__content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card__weight {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gold-600);
    background: var(--gold-50);
    border: 1px solid var(--gold-100);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
    width: fit-content;
}

.product-card__category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gold-500);
    margin-bottom: 6px;
}

.product-card__title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-700);
    margin-bottom: 8px;
}

.product-card__desc {
    font-size: 0.88rem;
    color: var(--dark-300);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
}

.product-card__price {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 16px;
}

.product-card__price-current {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gold-600);
}

.product-card__price-unit {
    font-size: 0.85rem;
    color: var(--dark-300);
}

/* --- Combo cards --- */
.product-card--combo .product-card__image-wrap {
    height: 200px;
}

.product-card--combo-featured {
    border-color: var(--gold-400);
    background: linear-gradient(160deg, #fff 60%, var(--gold-50) 100%);
}

.product-card__combo-num {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--gold-500);
    text-align: center;
    padding: 10px 0 4px;
    text-transform: uppercase;
}

.product-card__title--combo {
    font-size: 1.25rem;
    text-align: center;
    color: var(--dark-800);
    margin-bottom: 14px;
}

.product-card__includes {
    list-style: none;
    margin-bottom: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-card__includes li {
    font-size: 0.85rem;
    color: var(--dark-400);
    line-height: 1.5;
    padding-left: 4px;
}



/* === BENEFITS SECTION === */
.benefits {
    padding: var(--section-py) 0;
    background: var(--dark-50);
}

.benefits__wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.benefits__list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 1.5rem;
}

.benefit-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all var(--transition-normal);
    cursor: default;
}

.benefit-item:hover {
    border-color: var(--gold-200);
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.benefit-item__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gold-50);
    border-radius: var(--radius-sm);
    font-size: 1.4rem;
    flex-shrink: 0;
}

.benefit-item__title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-700);
    margin-bottom: 4px;
}

.benefit-item__desc {
    font-size: 0.88rem;
    color: var(--dark-300);
    line-height: 1.6;
}

.benefits__image-col {
    position: relative;
}

.benefits__image {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.benefits__floating-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: floatCard 3s ease-in-out infinite;
    border: 1px solid rgba(212,160,23,0.15);
}

.benefits__floating-card--1 {
    bottom: 30px;
    left: -20px;
    animation-delay: 0s;
}

.benefits__floating-card--2 {
    top: 30px;
    right: -20px;
    animation-delay: 1.5s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.benefits__floating-icon {
    font-size: 1.2rem;
}

.benefits__floating-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark-600);
}

/* === TESTIMONIALS === */
.testimonials {
    padding: var(--section-py) 0;
    background: var(--cream-50);
}

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

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--dark-50);
    transition: all var(--transition-normal);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial-card--featured {
    background: var(--gradient-cta);
    border-color: rgba(212,160,23,0.2);
}

.testimonial-card--featured .testimonial-card__text {
    color: rgba(255,255,255,0.85);
}

.testimonial-card--featured .testimonial-card__name {
    color: white;
}

.testimonial-card--featured .testimonial-card__role {
    color: rgba(255,255,255,0.5);
}

.testimonial-card__stars {
    font-size: 1.1rem;
    color: var(--gold-400);
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-card__text {
    font-size: 0.95rem;
    color: var(--dark-400);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

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

.testimonial-card__avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-gold);
    color: var(--dark-900);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.testimonial-card__name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-700);
}

.testimonial-card__role {
    font-size: 0.8rem;
    color: var(--dark-300);
}

/* === WHY US === */
.why-us {
    padding: var(--section-py) 0;
    background: var(--gradient-dark);
}

.why-us .section-title {
    color: white;
}

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

.why-us__card {
    padding: 32px 24px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.why-us__card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(212,160,23,0.1), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.why-us__card:hover {
    border-color: rgba(212,160,23,0.3);
    transform: translateY(-4px);
}

.why-us__card:hover::before {
    opacity: 1;
}

.why-us__card-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold-500);
    opacity: 0.3;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.why-us__card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: white;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.why-us__card-desc {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.5);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* === CTA SECTION === */
.cta-section {
    padding: var(--section-py) 0;
    background: var(--gradient-cta);
    position: relative;
    overflow: hidden;
}

.cta-section__bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 600px 400px at 10% 50%, rgba(212,160,23,0.1) 0%, transparent 70%),
        radial-gradient(ellipse 400px 300px at 90% 50%, rgba(212,160,23,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section__wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
    position: relative;
    z-index: 1;
}

.cta-section__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 700;
    color: white;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.cta-section__desc {
    font-size: 1rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.cta-section__perks {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cta-section__perks li {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

/* === CTA FORM === */
.cta-form {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.cta-form__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: 4px;
}

.cta-form__subtitle {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 24px;
}

.cta-form__group {
    margin-bottom: 16px;
}

.cta-form__label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    margin-bottom: 6px;
}

.cta-form__input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-md);
    color: white;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

.cta-form__input::placeholder {
    color: rgba(255,255,255,0.3);
}

.cta-form__input:focus {
    border-color: var(--gold-500);
    background: rgba(255,255,255,0.1);
    box-shadow: 0 0 0 3px rgba(212,160,23,0.15);
}

.cta-form__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.5)' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}

.cta-form__select option {
    background: var(--dark-700);
    color: white;
}

.cta-form__note {
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    margin-top: 12px;
}

/* === FOOTER === */
.footer {
    background: var(--dark-900);
    padding: 60px 0 0;
    color: rgba(255,255,255,0.6);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo--footer .logo__text {
    font-size: 1.1rem;
}

.footer__desc {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: 16px;
    color: rgba(255,255,255,0.45);
}

.footer__social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.6);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--gold-500);
    border-color: var(--gold-500);
    color: var(--dark-900);
    transform: translateY(-2px);
}

.footer__heading {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links a, .footer__contact a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition-fast);
}

.footer__links a:hover, .footer__contact a:hover {
    color: var(--gold-400);
}

.footer__contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 0.88rem;
}

.footer__bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.3);
}

/* === FLOATING CTA (Mobile) === */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--gradient-gold);
    color: var(--dark-900);
    padding: 14px 24px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: var(--shadow-gold-lg);
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-normal);
    transform: translateY(100px);
    opacity: 0;
}

.floating-cta.visible {
    transform: translateY(0);
    opacity: 1;
}

.floating-cta:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 50px rgba(212,160,23,0.5);
}

/* === TOAST === */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: white;
    padding: 16px 28px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10000;
    opacity: 0;
    transition: all 0.4s var(--ease-spring);
    border: 1px solid var(--gold-100);
}

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

.toast__icon {
    font-size: 1.4rem;
}

.toast__content strong {
    display: block;
    font-size: 0.95rem;
    color: var(--dark-700);
}

.toast__content p {
    font-size: 0.82rem;
    color: var(--dark-300);
    margin: 0;
}

/* === ANIMATIONS === */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

[data-animate="fade-down"] {
    transform: translateY(-30px);
}

[data-animate="fade-left"] {
    transform: translateX(50px) translateY(0);
}

[data-animate="fade-right"] {
    transform: translateX(-50px) translateY(0);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0, 0);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero__image-wrapper {
        display: none;
    }

    .hero__content {
        max-width: 100%;
        text-align: center;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__badge {
        margin-left: auto;
        margin-right: auto;
    }

    .problems__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solution__wrapper,
    .benefits__wrapper,
    .cta-section__wrapper {
        grid-template-columns: 1fr;
    }

    .solution__image-col {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }

    .benefits__image-col {
        max-width: 500px;
        margin: 0 auto;
    }

    .testimonials__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        inset: 0;
        background: rgba(13,11,7,0.97);
        backdrop-filter: blur(20px);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-normal);
        z-index: 1000;
    }

    .nav.open {
        opacity: 1;
        pointer-events: all;
    }

    .nav__list {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .nav__link {
        font-size: 1.2rem;
        padding: 12px 24px;
    }

    .problems__grid {
        grid-template-columns: 1fr;
    }

    .products__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .hero__stats {
        flex-direction: column;
        gap: 16px;
        padding: 24px;
    }

    .hero__stat-divider {
        width: 60px;
        height: 1px;
        margin: 0;
    }

    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .cta-form {
        padding: 28px 20px;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .benefits__floating-card {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.8rem;
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn--lg {
        padding: 14px 28px;
    }
}

/* === TOAST NOTIFICATION === */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    align-items: center;
    gap: 14px;
    background: white;
    border: 1px solid var(--gold-200);
    border-left: 4px solid var(--gold-500);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    min-width: 280px;
    max-width: 380px;
    /* Hidden: off-screen to the right */
    transform: translateX(calc(100% + 40px));
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
    pointer-events: none;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

.toast__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.toast__content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.toast__content strong {
    font-size: 0.95rem;
    color: var(--dark-700);
    font-weight: 700;
}

.toast__content p {
    font-size: 0.82rem;
    color: var(--dark-300);
    margin: 0;
}

@media (max-width: 480px) {
    .toast {
        bottom: 16px;
        right: 16px;
        left: 16px;
        max-width: none;
        min-width: unset;
        transform: translateY(calc(100% + 40px));
    }
    .toast.show {
        transform: translateY(0);
    }
}