/* ==========================================
   WATAMU TAXI - GLOBAL DESIGN SYSTEM
   ========================================== */

:root {
    /* Primary Colors */
    --primary: #FFC107;
    /* Yellow */
    --primary-hover: #e6ad00;
    --dark: #111111;
    /* Black */
    --light: #FFFFFF;
    /* White */

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Accents */
    --whatsapp: #25D366;
    --whatsapp-hover: #1da851;
    --danger: #ef4444;
    --success: #10b981;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Layout */
    --container-max: 1200px;
    --section-padding: 80px 20px;
    --header-height: 70px;
    --header-height-mobile: 65px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--light);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--dark);
    line-height: 1.2;
    font-weight: 800;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

.btn-dark {
    background-color: var(--dark);
    color: var(--light);
    border-color: var(--dark);
}

.btn-dark:hover {
    background-color: var(--gray-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: var(--light);
    border-color: var(--whatsapp);
}

.btn-whatsapp:hover {
    background-color: var(--whatsapp-hover);
    border-color: var(--whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--dark);
    border-color: var(--dark);
}

.btn-outline:hover {
    background-color: var(--dark);
    color: var(--light);
    transform: translateY(-2px);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--light);
    border-color: var(--light);
}

.btn-outline-white:hover {
    background-color: var(--light);
    color: var(--dark);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 2000;
    /* Increased to be above overlay */
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header.scrolled {
    height: 65px;
    background-color: var(--dark);
    box-shadow: var(--shadow-lg);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--light);
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--primary);
    margin-left: 4px;
}

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

.nav-link {
    color: var(--light);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
    border-radius: var(--radius-full);
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Mobile Toggle */
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2001;
    /* Relative to header */
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background-color: var(--light);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hamburger to X Animation */
.menu-toggle.active span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
}

/* ==========================================
   MOBILE NAVIGATION
   ========================================== */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background-color: var(--dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
        z-index: 1999;
        /* Just below header actions but above overlay */
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
        padding: 40px;
    }

    .nav-menu.active {
        right: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .header-actions .btn {
        display: none;
        /* Hide CTA button on mobile header to save space */
    }

    .nav-link {
        font-size: 20px;
        font-weight: 600;
    }

    .nav-link::after {
        height: 3px;
    }

    /* Mobile Overlay */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.8);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 1500;
        /* Between header content and page content */
    }

    .menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}

/* Mini mobile adjustments */
@media (max-width: 480px) {
    .nav-menu {
        width: 100%;
    }

    .logo {
        font-size: 18px;
    }
}

/* ==========================================
   SECTION COMMON
   ========================================== */
.section {
    padding: var(--section-padding);
}

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

.section-header h2 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-400);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 24px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer h4 {
    color: var(--light);
    font-size: 18px;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

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

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 14px;
}

.footer-contact-icon {
    color: var(--primary);
    font-size: 16px;
    margin-top: 2px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}