/* ===== Loader ===== */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--white, #fff);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    transition: opacity .4s ease, visibility .4s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-logo {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    animation: pulse 1.2s ease-in-out infinite;
}

.loader-bar {
    width: 160px;
    height: 4px;
    background: var(--gray-200, #eee);
    border-radius: 4px;
    overflow: hidden;
}

.loader-progress {
    height: 100%;
    width: 40%;
    background: var(--orange, #E65100);
    border-radius: 4px;
    animation: loading 1s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.08);
        opacity: .7;
    }
}

@keyframes loading {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(400%);
    }
}

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

:root {
    --orange: #E65100;
    --orange-light: #FF6D00;
    --orange-dark: #BF360C;
    --dark: #1a1a2e;
    --dark-lighter: #222240;
    --gray-900: #212121;
    --gray-700: #616161;
    --gray-400: #BDBDBD;
    --gray-200: #EEEEEE;
    --gray-100: #F5F5F5;
    --white: #ffffff;
    --radius: 8px;
    --shadow: 0 2px 12px rgba(0, 0, 0, .08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, .12);
    --transition: .3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
}

body {
    font-family: "Inter", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

.btn-block {
    width: 100%;
    text-align: center;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    box-shadow: var(--shadow);
    padding: 10px 0;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.navbar-menu {
    display: flex;
    gap: 32px;
}

.navbar-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--white);
    transition: var(--transition);
    position: relative;
}

.navbar.scrolled .navbar-menu a {
    color: var(--gray-900);
}

.navbar-menu a:hover,
.navbar.scrolled .navbar-menu a:hover {
    color: var(--orange);
}

.navbar-menu a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--orange);
    transition: var(--transition);
}

.navbar-menu a:hover::after {
    width: 100%;
}

/* Hamburger */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.navbar-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .navbar-toggle span {
    background: var(--gray-900);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-lighter) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: var(--orange);
    opacity: .06;
    top: -120px;
    right: -120px;
}

.hero::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--orange);
    opacity: .04;
    bottom: -80px;
    left: -80px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 640px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 17px;
    color: var(--gray-400);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Section Common ===== */
.section {
    padding: 96px 0;
}

.section-alt {
    background: var(--gray-100);
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.section-header p {
    font-size: 16px;
    color: var(--gray-700);
    max-width: 520px;
    margin: 0 auto;
}

/* ===== Service Cards ===== */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--orange), var(--orange-light));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--white);
    font-size: 22px;
}

.card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.card p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.65;
}

/* ===== Features ===== */
.features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.feature {
    text-align: center;
    padding: 28px 16px;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    color: var(--orange);
    font-size: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature:hover .feature-icon {
    background: var(--orange);
    color: var(--white);
}

.feature h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature p {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.6;
}

/* ===== About ===== */
.about {
    display: flex;
    align-items: center;
    gap: 56px;
}

.about-text {
    flex: 1;
}

.about-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-text p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 14px;
}

.about-stats {
    display: flex;
    gap: 36px;
    margin-top: 28px;
}

.about-stats li {
    text-align: center;
}

.about-stats strong {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--orange);
}

.about-stats span {
    font-size: 13px;
    color: var(--gray-700);
}

.about-image {
    flex: 0 0 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-item i {
    width: 44px;
    height: 44px;
    background: var(--orange);
    color: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 15px;
    margin-bottom: 2px;
}

.contact-item p {
    font-size: 14px;
    color: var(--gray-700);
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    transition: var(--transition);
    outline: none;
    background: var(--gray-100);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--orange);
    background: var(--white);
}

.form-group textarea {
    resize: vertical;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 56px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-logo {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 14px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    font-size: 14px;
    color: var(--gray-400);
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--orange);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 32px;
    }

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

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

    .about {
        flex-direction: column;
    }

    .about-image {
        flex: none;
        width: 200px;
    }

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

    .footer-inner {
        grid-template-columns: 1fr;
    }

    /* Mobile nav */
    .navbar-toggle {
        display: flex;
    }

    .navbar-menu {
        position: fixed;
        top: 0;
        right: -280px;
        width: 280px;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: var(--transition);
    }

    .navbar-menu.open {
        right: 0;
    }

    .navbar-menu a {
        color: var(--white);
        font-size: 17px;
    }

    .navbar.scrolled .navbar-menu a {
        color: var(--white);
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 26px;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .about-stats {
        flex-direction: column;
        gap: 16px;
    }
}