/* BAZAN TRAVEL B2B LANDING PAGE STYLES */
/* ========================================== */
/* 1. RESET & VARIABLE SYSTEM */
/* ========================================== */
:root {
    /* Color Palette */
    --color-primary: #0f4c81;     /* Sleek Classic Blue */
    --color-primary-light: #1b6ca8;
    --color-primary-dark: #072a4d;
    --color-secondary: #ff6f61;   /* Vibrant Coral */
    --color-accent: #f7b731;      /* Bright Warm Gold */
    --color-dark: #1e272e;        /* Dark Charcoal */
    --color-light: #f5f6fa;       /* Off-White */
    --color-white: #ffffff;
    --color-gray: #8892b0;
    --color-border: #dcdde1;
    --color-success: #2ecc71;
    --color-danger: #e74c3c;
    
    /* Fonts */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* System Sizes */
    --container-width: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --box-shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --box-shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --box-shadow-lg: 0 20px 40px rgba(15, 76, 129, 0.15);
}

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

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

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

/* ========================================== */
/* 2. BASE TYPOGRAPHY & UTILITIES */
/* ========================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-primary-dark);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }

p {
    font-size: 1rem;
    color: #4b6584;
}

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

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

.text-center { text-center: center; text-align: center; }
.text-red { color: var(--color-danger); }
.text-green { color: var(--color-success); }
.text-blue { color: var(--color-primary); }
.text-orange { color: var(--color-secondary); }
.text-yellow { color: var(--color-accent); }
.text-purple { color: #9b59b6; }

.grid {
    display: grid;
    gap: 32px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

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

/* Section Standard */
section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background-color: var(--color-secondary);
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray);
}

/* Badge Utility */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(15, 76, 129, 0.1);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 100px;
    margin-bottom: 16px;
}

.badge-accent {
    background-color: rgba(255, 111, 97, 0.1);
    color: var(--color-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(15, 76, 129, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 76, 129, 0.4);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Shadow Utility */
.card-shadow {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-md);
    padding: 40px;
    border: 1px solid rgba(15, 76, 129, 0.05);
}

.hidden {
    display: none !important;
}

/* ========================================== */
/* 3. NAVIGATION BAR */
/* ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--box-shadow-sm);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.logo-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--color-primary);
}

.logo-sub {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--color-secondary);
}

.logo-tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray);
    border-left: 1px solid var(--color-border);
    padding-left: 8px;
    margin-left: 8px;
}

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

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--border-radius-sm);
}

.nav-btn-call {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.nav-btn-zalo {
    background-color: #0068ff;
    color: var(--color-white);
}

.nav-btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

/* ========================================== */
/* 4. HERO SECTION */
/* ========================================== */
.hero-section {
    padding-top: 150px;
    padding-bottom: 100px;
    background: radial-gradient(circle at 10% 20%, rgb(4, 32, 66) 0%, rgb(12, 60, 102) 100.2%);
    position: relative;
    color: var(--color-white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15,76,129,0.9) 0%, rgba(255,111,97,0.2) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 48px;
}

.hero-content h1 {
    color: var(--color-white);
    margin-bottom: 24px;
    font-size: 3.5rem;
}

.hero-content h1 span {
    color: var(--color-secondary);
}

.hero-lead {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
}

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

/* Document Mockup Card in Hero */
.document-mockup {
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: 0 30px 60px rgba(0,0,0,0.3);
    overflow: hidden;
    color: var(--color-dark);
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    border: 1px solid rgba(255,255,255,0.1);
    animation: float 6s ease-in-out infinite;
}

.mockup-header {
    background-color: #f1f2f6;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #ff5f56;
}
.mockup-dots span:nth-child(2) { background-color: #ffbd2e; }
.mockup-dots span:nth-child(3) { background-color: #27c93f; }

.mockup-title {
    font-size: 0.8rem;
    color: var(--color-gray);
    font-family: monospace;
}

.mockup-body {
    padding: 24px;
}

.mockup-line-main {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1rem;
    margin-bottom: 16px;
    border-bottom: 2px dashed var(--color-border);
    padding-bottom: 8px;
}

.mockup-chart {
    height: 120px;
    display: flex;
    align-items: flex-end;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}

.chart-bar {
    flex: 1;
    background-color: var(--color-primary-light);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
}
.chart-bar:nth-child(2) { background-color: var(--color-secondary); }
.chart-bar:nth-child(3) { background-color: var(--color-accent); }

.mockup-files {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mockup-file-item {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ========================================== */
/* 5. PAIN POINTS SECTION */
/* ========================================== */
.pain-points-section {
    background-color: var(--color-white);
}

.card-pain {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 32px;
    transition: var(--transition);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 20px;
}

.card-pain h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.card-pain p {
    font-size: 0.95rem;
}

/* ========================================== */
/* 6. LEAD MAGNET SECTION & FORMS */
/* ========================================== */
.lead-magnet-section {
    background: linear-gradient(135deg, #f5f6fa 0%, #eef1f6 100%);
    border-top: 1px solid rgba(15, 76, 129, 0.05);
}

.magnet-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.magnet-info p {
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.magnet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.magnet-list li {
    font-size: 1.05rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.magnet-list li i {
    margin-top: 4px;
}

/* Standard B2B Form wrapper */
.form-wrapper h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    text-align: center;
}

.form-info {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 24px;
    text-align: center;
}

.lead-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-dark);
    outline: none;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.1);
}

.btn-submit {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 16px;
    font-size: 1.05rem;
    width: 100%;
    margin-top: 16px;
    box-shadow: 0 4px 14px rgba(255, 111, 97, 0.3);
}

.btn-submit:hover {
    background-color: #ff5242;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 111, 97, 0.4);
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    box-shadow: 0 4px 14px rgba(247, 183, 49, 0.3);
}

.btn-accent:hover {
    background-color: #e5a720;
    box-shadow: 0 6px 20px rgba(247, 183, 49, 0.4);
}

.form-footer-note {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-gray);
    margin-top: 8px;
}

/* Success Message Popup Styles */
.success-display {
    text-align: center;
    padding: 24px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    animation: slideUp 0.5s ease;
}

.success-large-icon {
    font-size: 3.5rem;
}

.success-display h4 {
    font-size: 1.5rem;
    color: var(--color-success);
}

.btn-success-action {
    background-color: var(--color-success);
    color: var(--color-white);
    margin-top: 16px;
}

/* ========================================== */
/* 7. AUDIENCE & SOLUTIONS */
/* ========================================== */
.card-audience {
    background-color: var(--color-white);
    padding: 40px 24px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid rgba(0,0,0,0.02);
}

.card-audience-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.card-audience h3 {
    margin-bottom: 16px;
}

.solution-visual {
    background: linear-gradient(135deg, rgba(15,76,129,0.05) 0%, rgba(255,111,97,0.05) 100%);
    border-radius: var(--border-radius-lg);
    height: 450px;
    position: relative;
    border: 2px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-badge-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.visual-badge {
    background-color: var(--color-white);
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--box-shadow-md);
    font-family: var(--font-heading);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.1rem;
    color: var(--color-primary-dark);
}

.visual-badge i {
    color: var(--color-secondary);
    font-size: 1.4rem;
}

.solution-item {
    display: flex;
    gap: 20px;
    margin-top: 32px;
}

.solution-number {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    color: var(--color-secondary);
    opacity: 0.3;
}

.solution-text h4 {
    margin-bottom: 8px;
}

/* ========================================== */
/* 8. SAMPLE ITINERARY & PROCESS */
/* ========================================== */
.itinerary-section {
    background-color: var(--color-white);
}

.card-itinerary {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 40px 32px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.itinerary-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
}

.card-itinerary h3 {
    margin-top: 12px;
    margin-bottom: 8px;
}

.itinerary-duration {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 16px;
    display: block;
}

.card-itinerary p {
    font-size: 0.95rem;
    margin-bottom: 24px;
    flex-grow: 1;
}

.itinerary-link {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.itinerary-link:hover {
    color: var(--color-secondary);
}

/* Case Study Area */
.case-study-placeholder {
    margin-top: 40px;
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    border: 3px dashed var(--color-border);
    padding: 60px 40px;
    color: var(--color-gray);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.case-study-placeholder p {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

/* Process Section */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.step-item {
    position: relative;
    padding-left: 60px;
}

.step-num {
    position: absolute;
    top: 0;
    left: 0;
    width: 44px;
    height: 44px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
}

.step-item h4 {
    margin-bottom: 12px;
}

.step-item p {
    font-size: 0.9rem;
}

/* ========================================== */
/* 9. PROPOSAL REQUEST SECTION */
/* ========================================== */
.proposal-request-section {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.proposal-request-section h2 {
    color: var(--color-white);
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.proposal-request-section p {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.contact-box {
    background-color: rgba(255,255,255,0.05);
    border-radius: var(--border-radius-sm);
    padding: 24px;
    display: inline-flex;
    flex-direction: column;
    gap: 12px;
}

.contact-box p {
    margin-bottom: 0;
    font-size: 1.05rem;
}

.contact-box strong {
    color: var(--color-secondary);
}

/* Footer Section */
.footer {
    background-color: #111;
    padding: 40px 0 100px 0; /* extra bottom padding for mobile stickies */
    color: var(--color-gray);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-logo {
    margin-bottom: 16px;
}

.footer-logo span {
    font-size: 1.8rem;
}

.footer-address {
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 0.75rem;
}

/* ========================================== */
/* 10. STICKY MOBILE NAVIGATION */
/* ========================================== */
.sticky-mobile-actions {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 999;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}

.sticky-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-white);
}

.sticky-call {
    background-color: var(--color-secondary);
}

.sticky-zalo {
    background-color: #0068ff;
}

/* ========================================== */
/* 11. ANIMATIONS & HOVERS */
/* ========================================== */
.animate-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-md);
}

@keyframes float {
    0% { transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) translateY(0); }
    50% { transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) translateY(-15px); }
    100% { transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) translateY(0); }
}

@keyframes shake {
    0%, 100% { transform: rotate(0); }
    20%, 60% { transform: rotate(-10deg); }
    40%, 80% { transform: rotate(10deg); }
}

.animate-shake {
    animation: shake 2s infinite;
}

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

/* ========================================== */
/* 12. RESPONSIVE DESIGN (MEDIA QUERIES) */
/* ========================================== */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-ctas {
        width: 100%;
        flex-direction: column;
    }
    
    .document-mockup {
        transform: none;
        animation: none;
        max-width: 450px;
        margin: 0 auto;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .nav-container {
        justify-content: center;
    }
    
    .nav-actions {
        display: none; /* hidden on tablets/mobile, use sticky bottom instead */
    }
    
    .sticky-mobile-actions {
        display: flex;
    }
}