/* =============================================
   Rocket Logistic - Stylesheet
   ============================================= */

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

:root {
    /* Brand Colors */
    --color-brand-green: #4EA831;
    --color-brand-green-dark: #3D8A26;
    --color-primary: #1E3A5F;
    --color-primary-dark: #152a45;
    --color-accent: #FF6B35;
    --color-accent-dark: #e55a2b;
    --color-light: #F5F5F5;
    --color-dark: #333333;
    --color-white: #FFFFFF;
    --color-gray: #555555;
    --color-gray-light: #E8E8E8;

    /* Semantic Colors */
    --color-success: #4CAF50;
    --color-error: #e74c3c;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Font Sizes - Major Third scale (1.25) */
    --fs-xs: 0.8rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.25rem;
    --fs-lg: 1.563rem;
    --fs-xl: 1.953rem;
    --fs-2xl: 2.441rem;
    --fs-3xl: 3.052rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --section-padding: 80px 0;
    --container-width: 1200px;
    --nav-height: 70px;

    /* Transitions */
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

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

ul {
    list-style: none;
}

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

/* =============================================
   Typography
   ============================================= */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

.section__title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section__subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--color-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* =============================================
   Buttons
   ============================================= */

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.btn--full {
    width: 100%;
}

/* =============================================
   Header & Navigation
   ============================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 100%;
}

.nav__logo {
    display: flex;
    align-items: center;
}

.nav__logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.nav__menu {
    margin-left: auto;
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.5rem 0;
    position: relative;
}

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

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

@keyframes heartbeat {
    0% {
        box-shadow: 0 0 0 0 var(--color-brand-green);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 0 7px transparent;
        transform: scale(1.05);
    }
    100% {
        box-shadow: 0 0 0 0 transparent;
        transform: scale(1);
    }
}

.nav__link--calculator {
    background-color: var(--color-brand-green);
    color: var(--color-white) !important;
    padding: 0.5rem 1rem !important;
    border-radius: 4px;
    animation: heartbeat 1.5s ease-in-out infinite;
}

.nav__link--calculator::after {
    display: none;
}

.nav__link--calculator:hover {
    background-color: var(--color-brand-green-dark);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.lang-toggle:hover {
    background-color: var(--color-primary-dark);
}

/* Mobile Menu Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* =============================================
   Hero Section
   ============================================= */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../assets/images/truck-rocket-logistic.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
}

.hero__background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.75) 0%, rgba(30, 58, 95, 0.45) 50%, rgba(0, 0, 0, 0.3) 100%);
}

.hero__content {
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl);
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: 3rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

.hero__subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* =============================================
   Services Section
   ============================================= */

.services {
    padding: var(--section-padding);
    background-color: var(--color-light);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.service-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    color: var(--color-brand-green);
}

.service-card__icon svg {
    width: 100%;
    height: 100%;
}

.service-card__title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.service-card__desc {
    color: var(--color-gray);
    font-size: var(--fs-sm);
}

.service-card--featured {
    border-top: 4px solid var(--color-brand-green);
    position: relative;
}

.service-card--featured::before {
    content: attr(data-badge);
    position: absolute;
    top: -4px;
    right: var(--space-lg);
    background-color: var(--color-brand-green);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-md);
    border-radius: 0 0 4px 4px;
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
}

/* =============================================
   About Section
   ============================================= */

.about {
    padding: var(--section-padding);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 3rem;
}

.about__content .section__title {
    text-align: left;
}

.about__text {
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--color-light);
    border-radius: 8px;
}

.stat__number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--color-brand-green);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.about__image {
    margin-top: var(--space-xl);
}

.about__image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* =============================================
   Contact Section
   ============================================= */

.contact {
    padding: var(--section-padding);
    background-color: var(--color-light);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact__form {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--color-gray-light);
    border-radius: 4px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: var(--fs-base);
    border: 2px solid var(--color-gray-light);
    border-radius: 4px;
    transition: var(--transition);
    background-color: var(--color-white);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23555' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select:focus {
    border-color: var(--color-accent);
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

/* Checkbox styles */
.form-group--checkbox {
    margin-bottom: 2rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: normal;
    margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.checkbox-label span {
    color: var(--color-dark);
    font-family: var(--font-body);
    font-size: 1rem;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact__info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact__info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: 8px;
    flex-shrink: 0;
}

.contact__info-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.contact__info-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact__info-item p {
    color: var(--color-gray);
}

.contact__info-item a {
    color: var(--color-accent);
}

.contact__info-item a:hover {
    text-decoration: underline;
}

.contact__messengers {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.messenger-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.messenger-link svg {
    width: 20px;
    height: 20px;
}

.messenger-link[aria-label="WhatsApp"] {
    background-color: #25D366;
    color: var(--color-white);
}

.messenger-link[aria-label="WhatsApp"]:hover {
    background-color: #128C7E;
    transform: scale(1.1);
}

.messenger-link[aria-label="Viber"] {
    background-color: #7360F2;
    color: var(--color-white);
}

.messenger-link[aria-label="Viber"]:hover {
    background-color: #5a4bc7;
    transform: scale(1.1);
}

/* =============================================
   Footer
   ============================================= */

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer__logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
}

.footer__tagline {
    opacity: 0.8;
}

.footer__links h4,
.footer__social h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__links a {
    opacity: 0.8;
}

.footer__links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: 1rem;
}

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

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background-color: var(--color-accent);
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* =============================================
   Responsive Design
   ============================================= */

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

    .about__grid {
        gap: 2rem;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer__brand {
        grid-column: 1 / -1;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
        --nav-height: 60px;
    }

    .section__title {
        font-size: 2rem;
    }

    /* Navigation */
    .nav__menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background-color: var(--color-white);
        padding: 2rem;
        transform: translateX(-100%);
        transition: var(--transition);
    }

    .nav__menu.active {
        transform: translateX(0);
    }

    .nav__list {
        flex-direction: column;
        gap: 1.5rem;
    }

    .nav__link {
        font-size: 1.25rem;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

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

    .nav__toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Hero */
    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    /* Services */
    .services__grid {
        grid-template-columns: 1fr;
    }

    /* About */
    .about__grid {
        grid-template-columns: 1fr;
    }

    .about__content .section__title {
        text-align: center;
    }

    .about__text {
        text-align: center;
    }

    .about__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat__number {
        font-size: 2rem;
    }

    /* Contact */
    .contact__grid {
        grid-template-columns: 1fr;
    }

    .contact__form {
        order: 2;
    }

    .contact__info {
        order: 1;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__logo {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .scroll-top {
        bottom: 1rem;
        right: 1rem;
    }

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

    .contact__form {
        padding: 1.5rem;
    }

    .btn {
        padding: 12px 24px;
    }
}

/* =============================================
   Animations
   ============================================= */

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

.hero__content {
    animation: fadeIn 0.8s ease forwards;
}

.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* =============================================
   Focus & Accessibility
   ============================================= */

*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.25);
}

.nav__link:focus-visible {
    outline: 2px solid var(--color-brand-green);
    outline-offset: 4px;
}

.social-link:focus-visible,
.messenger-link:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

/* =============================================
   Scroll to Top Button
   ============================================= */

.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

.scroll-top:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
}

.scroll-top svg {
    width: 20px;
    height: 20px;
}

/* =============================================
   Working Hours
   ============================================= */

.contact__hours {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact__hours h4 {
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.contact__hours-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-xs) 0;
    color: var(--color-gray);
    font-size: var(--fs-sm);
}

.contact__hours-row--active {
    color: var(--color-brand-green);
    font-weight: 600;
}

/* =============================================
   Form Overlays (Success / Error)
   ============================================= */

.form-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.form-overlay__content {
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
    margin: var(--space-md);
}

.form-overlay__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
}

.form-overlay__icon--success {
    color: var(--color-success);
}

.form-overlay__icon--error {
    color: var(--color-error);
}

.form-overlay__title {
    margin-bottom: var(--space-sm);
}

.form-overlay__text {
    color: var(--color-gray);
}

.form-overlay__btn {
    margin-top: var(--space-lg);
    padding: 10px 30px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.form-overlay__btn:hover {
    background: var(--color-accent-dark);
}

/* Form field error */
.form-error {
    color: var(--color-error);
    font-size: var(--fs-xs);
    margin-top: var(--space-xs);
}

.form-group input.field-error,
.form-group textarea.field-error {
    border-color: var(--color-error);
}