/* ============================================
   Apollo Shipping Agency & Co.
   Dark-themed Maritime Corporate Website
   ============================================ */

/* CSS Variables */
:root {
    --primary: #0B1C2D;
    --primary-light: #122a42;
    --secondary: #0E4D64;
    --accent: #1CA7A6;
    --accent-hover: #2dd4d3;
    --text: #F5F5F5;
    --text-muted: #B8C5D0;
    --card-bg: #0f2438;
    --glow: rgba(28, 167, 166, 0.3);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 28, 45, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    gap: 2rem;
}

.nav__logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    flex-shrink: 0;
}

.logo-text.accent {
    color: var(--accent);
}

.nav__menu {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.25rem;
    flex-shrink: 0;
}

.nav__menu > li {
    flex-shrink: 0;
}

.nav__link {
    display: inline-block;
    white-space: nowrap;
    padding: 0.5rem 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    transition: color var(--transition);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all var(--transition);
    transform: translateX(-50%);
}

.nav__link:hover,
.nav__link:focus {
    color: var(--text);
}

.nav__link:hover::after {
    width: calc(100% - 1rem);
}

/* Dropdown */
.nav__dropdown {
    position: relative;
}

.dropdown__menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--card-bg);
    border: 1px solid rgba(28, 167, 166, 0.2);
    border-radius: 8px;
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.nav__dropdown:hover .dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown__menu li a {
    display: block;
    padding: 0.6rem 1rem;
    font-size: 0.875rem;
    border-radius: 6px;
    transition: background var(--transition), color var(--transition);
}

.dropdown__menu li a:hover {
    background: rgba(28, 167, 166, 0.15);
    color: var(--accent);
}

/* Mobile Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav__toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

.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);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 40%, rgba(14, 77, 100, 0.3) 100%);
    z-index: 1;
}

.hero__ocean-effect {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(28, 167, 166, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(14, 77, 100, 0.2) 0%, transparent 50%);
    animation: oceanPulse 8s ease-in-out infinite alternate;
    z-index: 2;
}

@keyframes oceanPulse {
    0% { opacity: 0.8; }
    100% { opacity: 1; }
}

.hero__content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 8rem 1.5rem 4rem;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* Parallax effect on scroll */
.hero__content {
    will-change: transform;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    animation: fadeIn 1s ease-out 0.8s both;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(12px); opacity: 0.5; }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
}

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

.btn--primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--glow);
}

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

.btn--secondary:hover {
    background: rgba(28, 167, 166, 0.15);
    box-shadow: 0 0 20px var(--glow);
}

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

.btn--outline:hover {
    background: rgba(28, 167, 166, 0.1);
}

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

/* Ripple effect */
.btn--ripple {
    position: relative;
    overflow: hidden;
}

.btn--ripple::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    transform: scale(0);
    border-radius: 50%;
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    to {
        transform: scale(2.5);
        opacity: 0;
    }
}

/* Button ripple click effect */
.btn-ripple-effect {
    position: absolute;
    width: 100px;
    height: 100px;
    margin-left: -50px;
    margin-top: -50px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: scale(0);
    animation: btnRipple 0.6s ease-out forwards;
    pointer-events: none;
}

@keyframes btnRipple {
    to {
        transform: scale(2);
        opacity: 0;
    }
}

/* ============================================
   Section Styles
   ============================================ */

.section {
    padding: 5rem 0;
    scroll-margin-top: 70px;
}

.hero {
    scroll-margin-top: 0;
}

.section__tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 2rem;
}

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

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

.about__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__text {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.about__text + .btn {
    margin-top: 1.5rem;
}

.about__image-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.about__image-wrapper img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* Scroll reveal - hidden by default */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

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

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid rgba(28, 167, 166, 0.1);
    border-radius: 12px;
    padding: 2rem;
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px var(--glow);
    border-color: rgba(28, 167, 166, 0.3);
}

.service-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
}

.service-card__icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--accent);
}

.service-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================
   Why Choose Us - Counters
   ============================================ */

.counters__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.counter-card {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid rgba(28, 167, 166, 0.1);
}

.counter-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.counter {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--accent);
}

.counter-suffix {
    font-size: 1.5rem;
    color: var(--accent);
}

/* ============================================
   Sustainability Section
   ============================================ */

.sustainability {
    position: relative;
}

.sustainability__bg {
    position: absolute;
    inset: 0;
}

.sustainability__gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14, 77, 100, 0.2) 0%, var(--primary) 100%);
}

.sustainability__content {
    position: relative;
    z-index: 5;
}

.sustainability__divider {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin: 0 auto 2rem;
    animation: lineGrow 1.5s ease-out;
}

@keyframes lineGrow {
    from { width: 0; opacity: 0; }
    to { width: 80px; opacity: 1; }
}

.sustainability__text {
    max-width: 800px;
    margin: 0 auto 1rem;
    text-align: center;
    color: var(--text-muted);
}

/* ============================================
   Business Associates - Logo Slider
   ============================================ */

.logo-slider {
    overflow: hidden;
    margin-top: 2rem;
}

.logo-slider__track {
    display: flex;
    gap: 4rem;
    animation: logoScroll 25s linear infinite;
}

.logo-slider__item {
    flex-shrink: 0;
    padding: 2rem 3rem;
    background: var(--card-bg);
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-muted);
    border: 1px solid rgba(28, 167, 166, 0.1);
    white-space: nowrap;
}

@keyframes logoScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   Investors Section
   ============================================ */

.investors__tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(28, 167, 166, 0.2);
    border-radius: 8px;
    color: var(--text-muted);
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.tab-btn:hover {
    color: var(--text);
}

.tab-btn.active {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeInUp 0.4s ease-out;
}

.investors__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.investor-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(28, 167, 166, 0.1);
}

.investor-card__value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
    margin-bottom: 0.5rem;
}

.investor-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ============================================
   Press Releases
   ============================================ */

.press__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.press-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(28, 167, 166, 0.1);
    transition: all var(--transition);
}

.press-card:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.press-card__image {
    height: 180px;
    overflow: hidden;
}

.press-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.press-card:hover .press-card__image img {
    transform: scale(1.05);
}

.press-card__content {
    padding: 1.5rem;
}

.press-card__date {
    font-size: 0.75rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.press-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.press-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   Careers Section
   ============================================ */

.careers__banner {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    padding: 4rem 2rem;
    text-align: center;
    border-radius: 16px;
    margin: 0 1.5rem;
}

.careers__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.5rem;
}

.careers__subtitle {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

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

.careers__banner .btn:hover {
    background: var(--primary-light);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
}

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

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1rem 0.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(28, 167, 166, 0.2);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--glow);
}

.form-group input + label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.form-group textarea + label {
    position: absolute;
    left: 1rem;
    top: 1.5rem;
    transform: none;
}

.form-group label {
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
    transition: all var(--transition);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: 0.25rem;
    font-size: 0.75rem;
    color: var(--accent);
    transform: none;
}

.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: 0.25rem;
    font-size: 0.75rem;
    color: var(--accent);
}

.form-error {
    display: block;
    font-size: 0.75rem;
    color: #e74c3c;
    margin-top: 0.25rem;
}

.contact__map-placeholder {
    background: var(--card-bg);
    border-radius: 12px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(28, 167, 166, 0.1);
}

.map-placeholder__content {
    text-align: center;
    color: var(--text-muted);
}

.map-placeholder__content svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    stroke: var(--accent);
    opacity: 0.5;
}

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

.footer {
    background: #060f18;
    padding: 4rem 0 2rem;
    position: relative;
}

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

.footer__col h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.footer__col ul li {
    margin-bottom: 0.5rem;
}

.footer__col a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer__contact li {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border-radius: 8px;
    transition: all var(--transition);
}

.footer__social a:hover {
    background: var(--accent);
    color: var(--primary);
}

.footer__social svg {
    width: 20px;
    height: 20px;
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--accent);
    border: none;
    border-radius: 50%;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--glow);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

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

@media (max-width: 1200px) {
    .nav__menu {
        display: none;
    }

    .nav__menu.active {
        display: flex;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(11, 28, 45, 0.98);
        padding: 2rem;
        gap: 0;
        animation: slideDown 0.3s ease-out;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    }

    .nav__menu.active .nav__link {
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav__dropdown .dropdown__menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        margin-top: 0.5rem;
        margin-left: 1rem;
    }

    .nav__dropdown.open .dropdown__menu {
        display: block;
    }

    .nav__toggle {
        display: flex;
    }

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

    .about__image {
        order: -1;
    }

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

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

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

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

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

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

@media (max-width: 768px) {
    .section {
        padding: 3rem 0;
    }

    .hero__content {
        padding: 6rem 1rem 3rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        width: 100%;
    }

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

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

    .careers__banner {
        margin: 0 1rem;
        padding: 3rem 1rem;
    }

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

    .footer__social {
        justify-content: center;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }
}

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