/* ============================
   DESIGN SYSTEM / CSS VARIABLES
   ============================ */
:root {
    --color-primary: #1a237e;
    --color-primary-light: #3949ab;
    --color-accent: #f9a825;
    --color-accent-dark: #f57f17;
    --color-bg-light: #f5f7ff;
    --color-bg-purple: #ede7f6;
    --color-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --color-text-dark: #1a1a2e;
    --color-text-mid: #424242;
    --color-text-light: #757575;
    --color-white: #ffffff;
    --color-success: #43a047;
    --color-cta-green: #25d366;
    --color-cta-blue: #0068ff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.18);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.25);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--color-white);
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ============================
   HERO SECTION
   ============================ */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,35,126,0.85) 0%, rgba(118,75,162,0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 20px 40px;
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    margin-bottom: 24px;
    animation: pulse 2s ease-in-out infinite;
}

.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 25px rgba(249, 168, 37, 0.4);
    border: 3px solid var(--color-accent);
    transition: var(--transition);
}

.hero-logo:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 35px rgba(249, 168, 37, 0.6);
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--color-white);
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 3.5vw, 2rem);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.hero-hours {
    font-size: clamp(0.9rem, 2.5vw, 1.2rem);
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    margin-bottom: 32px;
    line-height: 1.5;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--color-cta-green), #1ead4e);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    font-weight: 700;
    padding: 16px 36px;
    border-radius: 50px;
    box-shadow: 0 6px 25px rgba(37,211,102,0.4);
    transition: var(--transition);
    animation: bounce 2s ease infinite;
}

.hero-cta:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 10px 35px rgba(37,211,102,0.5);
}

.cta-icon {
    font-size: 1.3em;
}

/* ============================
   PROMOTION SECTION
   ============================ */
.promotion-section {
    background: var(--color-white);
    padding: 48px 0;
    text-align: center;
}

.promo-title {
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 3vw, 1.6rem);
    font-weight: 800;
    color: var(--color-text-dark);
    margin-bottom: 20px;
    line-height: 1.4;
}

.promo-hotline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: clamp(1.3rem, 4vw, 2.2rem);
    font-weight: 800;
    color: var(--color-primary);
}

.promo-hotline a {
    color: var(--color-primary-light);
    transition: var(--transition);
}

.promo-hotline a:hover {
    color: var(--color-accent-dark);
}

/* ============================
   CARD TYPES SECTION
   ============================ */
.card-types-section {
    background: var(--color-bg-light);
    padding: 48px 0;
}

.card-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.card-logo-item {
    width: 120px;
    transition: var(--transition);
}

.card-logo-item:hover {
    transform: scale(1.1);
}

.card-svg {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.promo-badge-container {
    display: flex;
    justify-content: center;
}

.promo-badge {
    background: linear-gradient(135deg, #4a148c, #7b1fa2);
    color: var(--color-white);
    padding: 24px 40px;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
}

.badge-text {
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 600;
    line-height: 1.5;
}

.badge-text strong {
    font-size: 1.3em;
    color: var(--color-accent);
}

/* ============================
   FEATURES SECTION
   ============================ */
.features-section {
    background: var(--color-white);
    padding: 60px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.hotline-big {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 900;
    color: var(--color-text-dark);
    margin-bottom: 28px;
}

.hotline-big a {
    color: var(--color-primary);
    transition: var(--transition);
}

.hotline-big a:hover {
    color: var(--color-accent-dark);
}

.feature-items {
    list-style: none;
}

.feature-items li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    font-weight: 600;
    color: var(--color-primary);
    padding: 12px 0;
    border-bottom: 1px solid rgba(26,35,126,0.08);
}

.feature-items li:last-child {
    border-bottom: none;
}

.check-icon {
    flex-shrink: 0;
    font-size: 1.3em;
}

.features-image {
    display: flex;
    justify-content: center;
}

.features-image img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================
   SERVICE DETAILS SECTION
   ============================ */
.service-details-section {
    background: var(--color-bg-purple);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.service-details-section::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(249,168,37,0.15);
}

.service-details-section::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(102,126,234,0.12);
}

.service-details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.service-image-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.service-img-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.service-img-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-rate-tag {
    background: var(--color-accent);
    padding: 16px 32px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transform: rotate(-5deg);
    transition: var(--transition);
}

.service-rate-tag:hover {
    transform: rotate(0deg) scale(1.05);
}

.rate-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-text-dark);
}

.rate-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-mid);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-details-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    font-weight: 600;
    color: var(--color-text-dark);
    background: rgba(255,255,255,0.7);
    padding: 16px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.detail-item:hover {
    background: rgba(255,255,255,0.95);
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.detail-icon {
    flex-shrink: 0;
    font-size: 1.2em;
}

.service-phone-mockup {
    display: flex;
    justify-content: center;
}

.service-phone-mockup img {
    width: 100%;
    max-width: 300px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================
   OPERATING HOURS SECTION
   ============================ */
.hours-section {
    padding: 48px 0;
    background: var(--color-white);
}

.hours-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    padding: 28px 36px;
    border-radius: var(--radius-xl);
    box-shadow: 0 6px 30px rgba(249,168,37,0.35);
    max-width: 600px;
    margin: 0 auto;
    flex-wrap: wrap;
    text-align: center;
}

.hours-icon {
    font-size: 2.5rem;
}

.hours-text {
    display: flex;
    flex-direction: column;
}

.hours-time {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 900;
    color: var(--color-primary);
}

.hours-note {
    font-size: clamp(0.85rem, 2vw, 1rem);
    font-weight: 600;
    color: var(--color-text-mid);
}

/* ============================
   CTA BANNER
   ============================ */
.cta-banner-section {
    background: linear-gradient(135deg, #e53935, #d32f2f);
    padding: 20px 0;
    text-align: center;
}

.cta-text {
    font-family: var(--font-heading);
    font-size: clamp(0.85rem, 2.5vw, 1.2rem);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 1px;
    animation: marquee 12s linear infinite;
}

/* ============================
   PROCESS STEPS
   ============================ */
.process-section {
    background: var(--color-bg-light);
    padding: 60px 0;
}

.section-title-center {
    font-family: var(--font-heading);
    font-size: clamp(1.3rem, 3.5vw, 2rem);
    font-weight: 900;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 40px;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    padding-bottom: 32px;
}

.step-card:last-child {
    padding-bottom: 0;
}

.step-card:last-child .step-connector {
    display: none;
}

.step-img-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
    transition: var(--transition);
}

.step-card:hover .step-img-circle {
    transform: scale(1.08);
    box-shadow: var(--shadow-glow);
}

.step-img-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.step-info {
    background: var(--color-white);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-primary-light);
    max-width: 350px;
    box-shadow: var(--shadow-sm);
}

.step-info h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.step-info p {
    font-size: 0.95rem;
    color: var(--color-text-mid);
    line-height: 1.5;
}

.step-info a {
    color: var(--color-primary-light);
    font-weight: 700;
}

.step-connector {
    width: 3px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary-light), transparent);
    margin-top: 16px;
}

/* ============================
   LOCATIONS
   ============================ */
.locations-section {
    background: var(--color-white);
    padding: 60px 0;
}

.location-pin {
    font-size: 1.2em;
}

.locations-divider {
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary-light), transparent);
    margin: 0 auto 40px;
    max-width: 400px;
}

.locations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.location-card {
    background: var(--color-bg-light);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    transition: var(--transition);
}

.location-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--color-accent);
}

.location-card h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.location-card p {
    font-size: 0.9rem;
    color: var(--color-text-mid);
    margin-bottom: 4px;
}

.location-phone a {
    color: var(--color-primary-light);
    font-weight: 700;
    transition: var(--transition);
}

.location-phone a:hover {
    color: var(--color-accent-dark);
}

/* ============================
   FOOTER
   ============================ */
.footer-section {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 32px;
}

.footer-logo {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-accent);
    margin-bottom: 12px;
    box-shadow: 0 2px 12px rgba(249, 168, 37, 0.3);
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.footer-info p {
    font-size: 0.9rem;
    margin-bottom: 6px;
    opacity: 0.85;
}

.footer-info a {
    color: var(--color-accent);
    font-weight: 600;
}

.footer-payment h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.payment-logos {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.payment-svg {
    width: 70px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ============================
   FLOATING BUTTONS
   ============================ */
.floating-btn {
    position: fixed;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.floating-phone {
    bottom: 24px;
    left: 16px;
    background: linear-gradient(135deg, var(--color-cta-green), #1ead4e);
    color: var(--color-white);
    padding: 12px 20px;
    gap: 8px;
    animation: shake 1.5s ease-in-out infinite;
}

.floating-phone:hover {
    transform: scale(1.1);
}

.phone-icon {
    font-size: 1.5rem;
}

.phone-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    white-space: nowrap;
}

.floating-zalo {
    bottom: 24px;
    right: 16px;
    background: var(--color-white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    padding: 5px;
    animation: float 3s ease-in-out infinite;
}

.floating-zalo:hover {
    transform: scale(1.15);
}

.floating-zalo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ============================
   ANIMATIONS
   ============================ */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-8px); }
    60% { transform: translateY(-4px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0) rotate(0); }
    10% { transform: translateX(-2px) rotate(-3deg); }
    20% { transform: translateX(2px) rotate(3deg); }
    30% { transform: translateX(-2px) rotate(-3deg); }
    40% { transform: translateX(2px) rotate(3deg); }
    50%, 100% { transform: translateX(0) rotate(0); }
}

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

@keyframes marquee {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================
   TABLET (min-width: 600px)
   ============================ */
@media (min-width: 600px) {
    .container {
        padding: 0 24px;
    }

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

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

    .step-connector {
        display: none;
    }

    .step-card {
        padding-bottom: 0;
    }

    .card-logo-item {
        width: 160px;
    }

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

/* ============================
   DESKTOP (min-width: 900px)
   ============================ */
@media (min-width: 900px) {
    .container {
        padding: 0 40px;
    }

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

    .service-details-grid {
        grid-template-columns: 1fr 1.5fr 1fr;
    }

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

    .card-logo-item {
        width: 180px;
    }

    .hero-section {
        min-height: 100vh;
    }

    .service-img-circle {
        width: 250px;
        height: 250px;
    }

    .step-img-circle {
        width: 160px;
        height: 160px;
    }
}

/* ============================
   LARGE DESKTOP (min-width: 1200px)
   ============================ */
@media (min-width: 1200px) {
    .features-section {
        padding: 80px 0;
    }

    .service-details-section {
        padding: 80px 0;
    }

    .process-section {
        padding: 80px 0;
    }

    .locations-section {
        padding: 80px 0;
    }
}

/* ============================
   SMALL MOBILE (max-width: 400px)
   ============================ */
@media (max-width: 400px) {
    .hero-content {
        padding: 40px 12px 30px;
    }

    .hero-cta {
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    .floating-phone {
        padding: 10px 14px;
    }

    .phone-text {
        font-size: 0.85rem;
    }

    .floating-zalo {
        width: 50px;
        height: 50px;
    }

    .promo-badge {
        padding: 16px 20px;
    }

    .hours-box {
        padding: 20px 20px;
    }

    .step-img-circle {
        width: 110px;
        height: 110px;
    }
}