/* ===============================
   BLKBLT.JP - Dark Theme Design
   Inspired by blkblt.sg
   =============================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-black: #000000;
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --text-white: #ffffff;
    --text-gray: #a0a0a0;
    --text-light-gray: #666666;
    --accent-gold: #D4AF37;
    --accent-gold-light: #F4D03F;
    --accent-gold-dark: #B8941E;
    --accent-gray: #1a1a1a;
    --border-gray: #222222;
    --border-gold: rgba(212, 175, 55, 0.3);
    --hover-gray: #151515;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-white);
    background-color: var(--bg-black);
    overflow-x: hidden;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

section {
    padding: 120px 0;
}

/* ===============================
   Navigation
   =============================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-gray);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 0 8px rgba(212, 175, 55, 0.3));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--text-white);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition);
}

/* ===============================
   Hero Section
   =============================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: var(--bg-black);
    padding-top: 80px;
}

.hero-logo {
    margin-bottom: 4rem;
}

.hero-logo img {
    width: 420px;
    height: auto;
    opacity: 1;
    filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.6))
            drop-shadow(0 0 60px rgba(212, 175, 55, 0.4))
            drop-shadow(0 0 90px rgba(212, 175, 55, 0.2));
    animation: goldGlow 3s ease-in-out infinite;
}

@keyframes goldGlow {
    0%, 100% {
        filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.6))
                drop-shadow(0 0 60px rgba(212, 175, 55, 0.4))
                drop-shadow(0 0 90px rgba(212, 175, 55, 0.2));
    }
    50% {
        filter: drop-shadow(0 0 40px rgba(212, 175, 55, 0.8))
                drop-shadow(0 0 80px rgba(212, 175, 55, 0.5))
                drop-shadow(0 0 120px rgba(212, 175, 55, 0.3));
    }
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 4rem;
    line-height: 1.9;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

/* ===============================
   Buttons
   =============================== */
.btn {
    display: inline-block;
    padding: 16px 40px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    background-color: var(--accent-gold);
    color: var(--bg-black);
    transition: var(--transition);
    cursor: pointer;
    letter-spacing: 0.5px;
    border: none;
}

.btn:hover {
    background-color: var(--accent-gold-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--bg-black);
}

.btn-primary:hover {
    background-color: var(--accent-gold-light);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
}

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

/* ===============================
   Section Headers
   =============================== */
.section-header {
    text-align: center;
    margin-bottom: 6rem;
}

.section-label {
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-top: 1.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-weight: 400;
}

/* ===============================
   About Section
   =============================== */
.about {
    background-color: var(--bg-black);
    border-top: 1px solid var(--border-gray);
}

.about-story {
    max-width: 900px;
    margin: 0 auto 4rem;
    padding: 2rem;
    border-left: 3px solid var(--accent-gold);
    padding-left: 2rem;
}

.about-story p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-gray);
}

.strength-section {
    max-width: 1000px;
    margin: 0 auto;
}

.strength-title {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 3rem;
    text-align: center;
}

.strength-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 2.5rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
}

.strength-number {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--accent-gold);
    line-height: 1;
    flex-shrink: 0;
}

.strength-content h4 {
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.strength-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    margin-top: 4rem;
}

.about-item h3 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.about-item p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ===============================
   Services Section
   =============================== */
.services {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-gray);
}

/* ===============================
   Services Section
   =============================== */
.services {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-gray);
}

.phases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 6rem;
}

.phase-card {
    padding: 3rem 2.5rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
    transition: var(--transition);
}

.phase-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.2);
}

.phase-header {
    margin-bottom: 2rem;
}

.phase-label {
    display: inline-block;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.phase-card h3 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 0.8rem;
}

.phase-subtitle {
    font-size: 1rem;
    color: var(--text-gray);
    font-style: italic;
}

.phase-description {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 0.95rem;
}

.services-section {
    max-width: 1000px;
    margin: 0 auto;
}

.services-title {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 3rem;
    text-align: center;
}

.services-list {
    display: grid;
    gap: 2rem;
}

.service-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    padding: 2rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
}

.service-item i {
    font-size: 2rem;
    color: var(--accent-gold);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.service-item h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.service-item p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
}

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

.service-card {
    padding: 3rem 2rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--text-gray);
    transform: translateY(-5px);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===============================
   Stats/Achievements
   =============================== */
.achievements {
    background-color: var(--bg-black);
    border-top: 1px solid var(--border-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-bottom: 6rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.stat-gold {
    color: var(--accent-gold);
}

.stat-item {
    text-align: center;
    padding: 3rem 1rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
}

.stat-number {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-gray);
    letter-spacing: 1px;
    margin-bottom: 0.8rem;
}

.stat-description {
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.5;
    margin-top: 0.5rem;
}

.achievements-list {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.achievement-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
    align-items: flex-start;
}

.achievement-item > div {
    flex: 1;
}

.achievement-item i {
    font-size: 1.5rem;
    color: var(--text-white);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.achievement-item h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.achievement-item p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===============================
   Partner Section
   =============================== */
.partner {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-gray);
}

.partner-card {
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
    padding: 3rem;
}

.partner-header {
    display: flex;
    gap: 2rem;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-gray);
}

.partner-image {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
}

.partner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--border-gray);
}

.partner-name-gold {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-gold);
}

.partner-info h3 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.partner-title {
    font-size: 1rem;
    color: var(--text-gray);
    letter-spacing: 0.5px;
}

.partner-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

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

.company-item {
    padding: 1.5rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-black);
}

.company-item h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.company-item h4 i {
    color: var(--accent-gold);
}

.company-item p {
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.partner-expertise h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.expertise-list {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.expertise-list li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.expertise-list li i {
    color: var(--accent-gold);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

/* ===============================
   Contact Section
   =============================== */
.contact {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 6rem;
    max-width: 1100px;
    margin: 0 auto;
}

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

.contact-logo {
    margin-bottom: 2rem;
}

.contact-logo img {
    width: 180px;
    height: auto;
    filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.4));
}

.contact-info p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-details {
    margin: 3rem 0;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h4 {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.contact-item p {
    font-size: 1rem;
    color: var(--text-white);
    margin: 0;
}

.contact-item a {
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--text-gray);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-gray);
    margin-bottom: 0.8rem;
}

.required {
    color: var(--text-white);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 16px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-gray);
    color: var(--text-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-gray);
    background-color: var(--bg-black);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group select {
    cursor: pointer;
}

.btn-submit {
    width: auto;
    align-self: flex-start;
    margin-top: 1rem;
}

/* ===============================
   Footer
   =============================== */
.footer {
    background-color: var(--bg-black);
    border-top: 1px solid var(--border-gray);
    padding: 6rem 0 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-logo img {
    width: 120px;
    height: auto;
    opacity: 0.9;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.3));
}

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.footer-section h4 {
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-gray);
}

.footer-section p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 1rem;
}

.footer-section ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--text-white);
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid var(--border-gray);
}

.footer-bottom p {
    color: var(--text-light-gray);
    font-size: 0.85rem;
}

/* ===============================
   Scroll Top Button
   =============================== */
.scroll-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-gold);
    border: none;
    color: var(--bg-black);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--accent-gold-light);
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
}

/* ===============================
   Feature Grid (for About)
   =============================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-top: 3rem;
}

.feature-item {
    padding: 2.5rem;
    border: 1px solid var(--border-gray);
    background-color: var(--bg-dark);
    transition: var(--transition);
}

.feature-item:hover {
    border-color: var(--text-gray);
}

.feature-item i {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-item h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

.feature-item p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===============================
   Responsive Design
   =============================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }

    section {
        padding: 80px 0;
    }

    .hero-title {
        font-size: 3.5rem;
    }

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

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

    .about-grid,
    .strength-item {
        flex-direction: column;
    }

    .strength-number {
        font-size: 2rem;
    }

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

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

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    section {
        padding: 60px 0;
    }

    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--bg-black);
        flex-direction: column;
        padding: 100px 40px 40px;
        gap: 2rem;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border-gray);
    }

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

    .nav-menu a {
        font-size: 1.5rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-logo img {
        width: 280px;
        filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.5))
                drop-shadow(0 0 40px rgba(212, 175, 55, 0.3));
    }

    .hero-subtitle {
        font-size: 0.8rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .services-grid,
    .about-grid,
    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .phase-card {
        padding: 2rem 1.5rem;
    }

    .hero-logo img {
        width: 150px;
    }

    .strength-item {
        padding: 1.5rem;
    }

    .about-story {
        padding: 1.5rem;
        padding-left: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .partner-header {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .partner-companies {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-logo img {
        width: 200px;
        filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.4))
                drop-shadow(0 0 30px rgba(212, 175, 55, 0.2));
    }

    .section-title {
        font-size: 1.7rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }
}

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

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* Remove hero overlay */
.hero-overlay {
    display: none;
}