/* ========================================
   iTechPlus1987 - Mobile Shop Website
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
    --color-primary: #cf0101;
    --color-secondary: #3983a6;
    --color-accent: #c3b49b;
    --color-gray: #adb0af;
    --color-dark: #222222;
    --color-light: #f9f9f9;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-text-light: #666666;
    --font-family: 'Prompt', sans-serif;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #a80101;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(207, 1, 1, 0.4);
}

.btn-order {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 10px 24px;
    font-size: 0.9rem;
    width: 100%;
}

.btn-order:hover {
    background-color: #2d6a87;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(57, 131, 166, 0.4);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 75px;
}

.logo img {
    height: 55px;
    width: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
    background-color: var(--color-primary);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================
   BANNER SLIDER
   ======================================== */
.banner {
    margin-top: 75px;
    position: relative;
    overflow: hidden;
}

.slider {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.slides {
    display: flex;
    width: 300%;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.slide-image {
    width: 100%;
    height: auto;
    display: block;
    /* object-fit: cover; */
}

/* Slider Controls */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.4);
}

.slider-prev {
    left: 20px;
}

.slider-next {
    right: 20px;
}

.slider-dots {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--color-white);
    transform: scale(1.2);
}

/* ========================================
   SECTION COMMON
   ======================================== */
.section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

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

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1.05rem;
    margin-top: 16px;
}

/* ========================================
   PRODUCTS
   ======================================== */
.products {
    background-color: var(--color-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.product-icon {
    font-size: 5rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.product-info {
    padding: 24px;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.product-desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

/* ========================================
   CONTACT
   ======================================== */
.contact {
    background-color: var(--color-white);
}

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

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), #a80101);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.contact-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text);
}

.contact-text p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-social {
    margin-top: 16px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.contact-social h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(207, 1, 1, 0.3);
}

.contact-map {
    min-height: 400px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--color-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    height: 50px;
    margin-bottom: 16px;
    filter: brightness(1.1);
}

.footer-about p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 20px;
    position: relative;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

.footer-links ul {
    margin-top: 12px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 6px;
}

.footer-contact p {
    font-size: 0.9rem;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-contact p i {
    width: 20px;
    margin-right: 8px;
    color: var(--color-primary);
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   SCROLL TO TOP
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(207, 1, 1, 0.3);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    background: #a80101;
    transform: translateY(-3px);
}

/* ========================================
   RESPONSIVE
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-about {
        grid-column: 1 / -1;
    }

}

/* Mobile */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        transition: right 0.3s ease;
        z-index: 1000;
        padding-top: 90px;
    }

    .nav.open {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        padding: 0 24px;
        gap: 4px;
    }

    .nav-link {
        display: block;
        padding: 12px 20px;
        border-radius: 8px;
        font-size: 1rem;
    }

    .nav-link:hover,
    .nav-link.active {
        background-color: rgba(207, 1, 1, 0.1);
        color: var(--color-primary);
    }

    /* Overlay */
    .nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-overlay.show {
        display: block;
    }

    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

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

    .contact-map {
        min-height: 300px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-about {
        grid-column: auto;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .header-inner {
        height: 65px;
    }

    .logo img {
        height: 45px;
    }

    .banner {
        margin-top: 65px;
    }

    .btn-primary {
        padding: 10px 24px;
        font-size: 0.9rem;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .product-image {
        height: 180px;
    }
}