/**
 * ============================================
 * PHUKETDRIVE - Main Stylesheet
 * ============================================
 */

/* ============================================
   CSS Variables (สีธีม)
   ============================================ */
:root {
    /* Primary Colors */
    --primary: #F37021;
    --primary-dark: #E85A1E;
    --primary-light: #FF8C42;
    
    /* Secondary Colors */
    --secondary: #F5A623;
    --gold: #D4A84B;
    --gold-dark: #8B6914;
    
    /* Accent Colors */
    --sea-blue: #4ABDBD;
    --sea-light: #7DD5D5;
    
    /* Neutral Colors */
    --dark: #333333;
    --gray-dark: #555555;
    --gray: #777777;
    --gray-light: #999999;
    --gray-lighter: #F5F5F5;
    --white: #FFFFFF;
    
    /* Status Colors */
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --info: #17A2B8;
    
    /* Typography */
    --font-family: 'Prompt', sans-serif;
    --font-size-base: 16px;
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-xxl: 50px;
    
    /* Border Radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 25px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================
   Reset & Base
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

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

a:hover {
    color: var(--primary);
}

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

ul {
    list-style: none;
}

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.text-primary { color: var(--primary) !important; }
.text-dark { color: var(--dark) !important; }
.text-gray { color: var(--gray) !important; }
.text-white { color: var(--white) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-center { text-align: center; }

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-lg {
    padding: 15px 35px;
    font-size: 1.1rem;
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

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

.navbar-logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 5px;
}

.navbar-menu a {
    padding: 10px 15px;
    border-radius: var(--radius-md);
    color: var(--gray-dark);
    font-weight: 500;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--primary);
    background: rgba(243, 112, 33, 0.1);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-login {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-dark);
    font-weight: 500;
}

.btn-login:hover {
    color: var(--primary);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.btn-dropdown {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--gray-dark);
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    min-width: 200px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--gray-dark);
}

.dropdown-menu a:hover {
    background: var(--gray-lighter);
    color: var(--primary);
}

.dropdown-menu hr {
    margin: 10px 0;
    border: none;
    border-top: 1px solid var(--gray-lighter);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, #F5F5F5 0%, #E8E8E8 100%);
    padding: 60px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(243, 112, 33, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 15px;
}

.hero-title span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* ============================================
   Search Box
   ============================================ */
.search-box-wrapper {
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.search-box {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 30px;
}

.search-box-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.search-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 15px;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--gray);
    font-weight: 500;
}

.form-control {
    padding: 12px 15px;
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
}

.input-icon .form-control {
    padding-left: 45px;
}

.btn-search {
    padding: 15px 30px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-search:hover {
    background: var(--primary-dark);
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-subtitle {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2rem;
    color: var(--dark);
}

.section-title span {
    color: var(--primary);
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* ============================================
   Features (Why Choose Us)
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: rgba(243, 112, 33, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 1.8rem;
    color: var(--primary);
}

.feature-card h4 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.5;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-logo img {
    height: 80px;
    margin-bottom: 15px;
}

.footer-desc {
    color: var(--gray-light);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--white);
}

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

.footer-col ul li a {
    color: var(--gray-light);
    font-size: 0.95rem;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--primary);
    width: 20px;
}

.footer-bottom {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-light);
    font-size: 0.9rem;
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ============================================
   Responsive - ปรับให้รองรับทุกอุปกรณ์
   ============================================ */

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* Desktop (992px - 1199px) */
@media (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 2.4rem;
    }
}

/* Tablet Landscape / Small Desktop (768px - 991px) */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .search-form {
        grid-template-columns: 1fr 1fr;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.7rem; }
    h3 { font-size: 1.3rem; }
}

/* Tablet Portrait (576px - 767px) */
@media (max-width: 768px) {
    :root {
        --font-size-base: 15px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    /* Navbar Mobile */
    .navbar-content {
        padding: 10px 0;
    }
    
    .navbar-logo img {
        height: 40px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 15px;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .navbar-menu.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .navbar-menu a {
        padding: 12px 15px;
        border-bottom: 1px solid #f0f0f0;
        width: 100%;
    }
    
    .navbar-toggle {
        display: block;
    }
    
    .navbar-right .btn-primary span {
        display: none;
    }
    
    /* Hero Mobile */
    .hero {
        padding: 40px 0 80px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* Search Box Mobile */
    .search-box-wrapper {
        margin-top: -40px;
    }
    
    .search-box {
        padding: 20px;
    }
    
    .search-form {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .btn-search {
        width: 100%;
        padding: 14px;
    }
    
    /* Section Mobile */
    .section {
        padding: 50px 0;
    }
    
    .section-header {
        margin-bottom: 30px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    /* Features Mobile */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .feature-card {
        padding: 20px 15px;
    }
    
    .feature-icon {
        width: 55px;
        height: 55px;
        margin-bottom: 15px;
    }
    
    .feature-icon i {
        font-size: 1.4rem;
    }
    
    .feature-card h4 {
        font-size: 0.9rem;
    }
    
    .feature-card p {
        font-size: 0.8rem;
        display: none; /* ซ่อนคำอธิบายบนมือถือ */
    }
    
    /* Footer Mobile */
    .footer {
        padding: 40px 0 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-logo img {
        height: 60px;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-contact li {
        justify-content: center;
    }
    
    /* Buttons Mobile */
    .btn {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    .btn-lg {
        padding: 12px 28px;
        font-size: 1rem;
    }
    
    /* Dropdown Mobile */
    .dropdown-menu {
        min-width: 160px;
    }
}

/* Mobile (320px - 575px) */
@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
    }
    
    .container {
        padding: 0 12px;
    }
    
    /* Hero Small Mobile */
    .hero {
        padding: 30px 0 60px;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 14px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    /* Search Box Small Mobile */
    .search-box-wrapper {
        margin-top: -30px;
    }
    
    .search-box {
        padding: 15px;
        border-radius: 12px;
    }
    
    .search-box-title {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .form-control {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .input-icon .form-control {
        padding-left: 38px;
    }
    
    .input-icon i {
        left: 12px;
        font-size: 0.9rem;
    }
    
    /* Section Small Mobile */
    .section {
        padding: 40px 0;
    }
    
    .section-subtitle {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    /* Features Small Mobile */
    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .feature-card {
        padding: 15px 10px;
    }
    
    .feature-icon {
        width: 45px;
        height: 45px;
    }
    
    .feature-icon i {
        font-size: 1.2rem;
    }
    
    .feature-card h4 {
        font-size: 0.8rem;
        margin-bottom: 5px;
    }
    
    /* Footer Small Mobile */
    .footer-col h4 {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .footer-col ul li {
        margin-bottom: 8px;
    }
    
    .footer-col ul li a {
        font-size: 0.9rem;
    }
    
    .footer-bottom {
        padding: 15px 0;
    }
    
    .footer-bottom p {
        font-size: 0.8rem;
    }
    
    /* Typography Small Mobile */
    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 1.2rem; }
    h4 { font-size: 1rem; }
    
    /* Back to Top Small Mobile */
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* Very Small Mobile (< 320px) */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }
    
    .hero-title {
        font-size: 1.3rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar-logo img {
        height: 35px;
    }
    
    .logo-text {
        font-size: 1rem;
    }
}

/* ============================================
   Utility Classes for Responsive
   ============================================ */
.hide-mobile {
    display: block;
}

.show-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
    
    .show-mobile {
        display: block !important;
    }
}

/* Text alignment responsive */
@media (max-width: 768px) {
    .text-center-mobile {
        text-align: center !important;
    }
}

/* Spacing responsive */
@media (max-width: 768px) {
    .mb-mobile-0 { margin-bottom: 0 !important; }
    .mb-mobile-1 { margin-bottom: 10px !important; }
    .mb-mobile-2 { margin-bottom: 20px !important; }
    .p-mobile-0 { padding: 0 !important; }
    .p-mobile-1 { padding: 10px !important; }
    .p-mobile-2 { padding: 20px !important; }
}
/* ปุ่มสมัครสมาชิก */
.btn-register {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin-right: 10px;
}

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

@media (max-width: 768px) {
    .btn-register {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    .btn-register span {
        display: none;
    }
}