/* ============================================
   CSS VARIABLES - EDIT COLORS HERE
   ============================================ */
:root {
    /* Primary Colors */
    --color-bg: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-accent: #ff4d4d;
    --color-accent-hover: #ff6b6b;
    
    /* Text Colors */
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    
    /* WhatsApp Green */
    --color-whatsapp: #25d366;
    --color-whatsapp-hover: #20bd5a;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    
    /* Border Radius */
    --radius: 8px;
    
    /* Transitions */
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

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

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

ul {
    list-style: none;
}

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

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section__title {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-align: center;
}

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

.btn--primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 77, 77, 0.3);
}

.btn--secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border: 2px solid var(--color-accent);
}

.btn--secondary:hover {
    background: var(--color-accent);
}

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

.btn--whatsapp:hover {
    background: var(--color-whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

.btn__icon {
    font-size: 1.2rem;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav__logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.nav__logo span {
    color: var(--color-accent);
}

.nav__menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav__link {
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.nav__link:hover {
    color: var(--color-accent);
}

.nav__link:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text);
    border-radius: 3px;
    transition: all var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Dark gradient background - replace with image if needed */
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-sm);
}

.hero__title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__text {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

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

.about__content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.about__content strong {
    color: var(--color-accent);
}

.about__stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-accent);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: 0 20px 40px rgba(255, 77, 77, 0.1);
}

.service-card__icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.service-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.service-card__text {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.contact__content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact__text {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.contact__buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact__info {
    color: var(--color-text-secondary);
}

.contact__info p {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-md) 0;
    background: var(--color-bg-secondary);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   MOBILE STYLES
   ============================================ */
@media (max-width: 768px) {
    /* Mobile Navigation */
    .nav__menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateY(-150%);
        opacity: 0;
        transition: all var(--transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav__toggle {
        display: flex;
    }

    /* Toggle animation when menu is open */
    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* About Stats */
    .about__stats {
        gap: var(--spacing-md);
    }

    .stat__number {
        font-size: 2rem;
    }

    /* Contact Buttons */
    .contact__buttons {
        padding: 0 var(--spacing-sm);
    }

    .btn {
        width: 100%;
    }
}

/* ============================================
   TABLET AND UP
   ============================================ */
@media (min-width: 769px) {
    .contact__buttons {
        flex-direction: row;
        justify-content: center;
    }

    .btn {
        min-width: 220px;
    }
}

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

/* Apply fade-in animation to sections */
.about,
.services,
.contact {
    animation: fadeInUp 0.6s ease-out;
}