/* ===================================
   OLDSKOOL ARTS & LEGENDS - MAIN STYLES
   Brand Colors: #FFFFFF (White), #000000 (Black), #F5C400 (Yellow)
   =================================== */

/* === ROOT VARIABLES === */
:root {
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-yellow: #F5C400;
    --color-yellow-dark: #d4a900;
    --color-yellow-light: #ffd633;
    --color-gray-light: #f5f5f5;
    --color-gray: #666666;
    --color-gray-dark: #333333;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto;
}

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

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--color-yellow);
    margin: 20px 0;
}

.title-underline.center {
    margin: 20px auto;
}

/* === HEADER / NAVIGATION === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    transition: var(--transition);
}

.header.scrolled .nav {
    padding: 15px 20px;
}

/* Logo */
.logo a {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

.logo-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.45);
    flex-shrink: 0;
    transition: var(--transition);
}

.logo a:hover .logo-img {
    border-color: var(--color-yellow);
    transform: scale(1.06) rotate(8deg);
}

.header.scrolled .logo-img {
    width: 42px;
    height: 42px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: 2px;
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--color-yellow);
    letter-spacing: 3px;
    font-weight: 600;
    margin-top: -5px;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--color-white);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
    padding: 5px 0;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-yellow);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-white);
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 14px 35px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--color-yellow);
    color: var(--color-black);
    border-color: var(--color-yellow);
}

.btn-primary:hover {
    background-color: var(--color-yellow-dark);
    border-color: var(--color-yellow-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(245, 196, 0, 0.3);
}

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

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

.btn-small {
    padding: 10px 25px;
    font-size: 0.85rem;
}

.btn-large {
    padding: 18px 45px;
    font-size: 1rem;
}

.join-btn {
    margin-left: 20px;
}

/* === HERO SECTION === */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    background-image: url('../images/hero-art.svg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
    color: var(--color-white);
    letter-spacing: 2px;
}

.hero-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-yellow);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* === INTRO SECTION === */
.intro-section {
    background-color: var(--color-white);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-text {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--color-gray-dark);
    margin-bottom: 20px;
}

/* === ABOUT PREVIEW SECTION === */
.about-preview {
    background-color: var(--color-gray-light);
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.two-column.reverse {
    direction: rtl;
}

.two-column.reverse > * {
    direction: ltr;
}

.image-wrapper {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

.feature-list {
    margin: 30px 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.feature-list i {
    color: var(--color-yellow);
    font-size: 1.2rem;
}

/* === VALUES SECTION === */
.values-section {
    background-color: var(--color-black);
    color: var(--color-white);
}

.values-section .section-title {
    color: var(--color-white);
}

.values-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

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

.value-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
}

.value-card:hover {
    border-color: var(--color-yellow);
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.08);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-yellow) 0%, var(--color-yellow-dark) 100%);
    border-radius: 50%;
    color: var(--color-black);
    font-size: 2rem;
}

.value-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--color-yellow);
}

.value-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

/* === MISSION PREVIEW === */
.mission-preview {
    background-color: var(--color-white);
}

.mission-text {
    font-size: 1.2rem;
    line-height: 1.9;
    font-style: italic;
    color: var(--color-gray-dark);
    margin: 30px 0;
    padding-left: 20px;
    border-left: 4px solid var(--color-yellow);
}

/* === WHAT WE DO SECTION === */
.what-we-do-section {
    background-color: var(--color-gray-light);
}

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

.activity-card {
    background-color: var(--color-white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.activity-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-yellow);
    border-radius: 50%;
    color: var(--color-black);
    font-size: 1.8rem;
}

.activity-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--color-black);
}

.activity-card p {
    color: var(--color-gray);
    line-height: 1.7;
}

/* === EVENTS SECTION === */
.events-section {
    background-color: var(--color-white);
}

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

.event-card {
    background-color: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.event-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.event-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.event-card:hover .event-image img {
    transform: scale(1.1);
}

.event-content {
    padding: 25px;
}

.event-content h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--color-black);
}

.event-content p {
    color: var(--color-gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.event-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--color-gray);
}

.event-meta i {
    color: var(--color-yellow);
    margin-right: 8px;
}

/* === SEMINARS PREVIEW === */
.seminars-preview {
    background-color: var(--color-black);
    color: var(--color-white);
}

.seminars-preview .section-title {
    color: var(--color-white);
}

.seminars-preview .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.seminars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.seminar-topic {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--color-yellow);
    transition: var(--transition);
}

.seminar-topic:hover {
    background-color: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.seminar-topic i {
    color: var(--color-yellow);
    font-size: 1.2rem;
}

.seminar-topic span {
    font-size: 1.05rem;
}

/* === CSR SECTION === */
.csr-section {
    background-color: var(--color-yellow);
    color: var(--color-black);
}

.csr-section .section-title {
    color: var(--color-black);
}

.csr-intro {
    font-size: 1.2rem;
    line-height: 1.8;
    font-style: italic;
    max-width: 800px;
    margin: 0 auto 50px;
}

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

.csr-item {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 35px 25px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.csr-item:hover {
    transform: translateY(-5px);
    background-color: #1a1a1a;
}

.csr-item i {
    font-size: 3rem;
    color: var(--color-yellow);
    margin-bottom: 20px;
}

.csr-item h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-white);
}

/* === MEMBERSHIP CTA === */
.membership-cta {
    background-color: var(--color-black);
    color: var(--color-white);
}

.membership-cta .section-title {
    color: var(--color-white);
}

.membership-intro {
    font-size: 1.15rem;
    line-height: 1.8;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

.benefit-item i {
    color: var(--color-yellow);
    font-size: 1.3rem;
}

.benefit-item span {
    font-size: 1.05rem;
}

/* === MONTHLY MEETING === */
.meeting-section {
    background-color: var(--color-white);
}

.meeting-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.meeting-info {
    margin: 40px 0;
}

.meeting-detail {
    margin-bottom: 30px;
}

.meeting-detail i {
    font-size: 3rem;
    color: var(--color-yellow);
    margin-bottom: 15px;
}

.meeting-detail h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-black);
}

.meeting-tagline {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-yellow);
    letter-spacing: 2px;
    margin-top: 30px;
}

/* === LEADERSHIP SECTION === */
.leadership-section {
    background-color: var(--color-gray-light);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.leader-card {
    background-color: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.leader-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.leader-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    background-color: var(--color-gray-light);
}

.leader-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.leader-info {
    padding: 30px;
    text-align: center;
}

.leader-position {
    display: inline-block;
    background-color: var(--color-yellow);
    color: var(--color-black);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.leader-name {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-black);
    margin-bottom: 15px;
}

.leader-bio {
    color: var(--color-gray);
    line-height: 1.7;
}

/* === FOOTER === */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-yellow);
    margin-bottom: 20px;
}

.footer-logo {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo-img {
    width: 84px;
    height: 84px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
    transition: var(--transition);
}

.footer-logo-img:hover {
    border-color: var(--color-yellow);
    transform: scale(1.05);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

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

.social-links a:hover {
    background-color: var(--color-yellow);
    color: var(--color-black);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-yellow);
    padding-left: 5px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
    line-height: 1.6;
}

.footer-section i {
    color: var(--color-yellow);
    margin-right: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* === BACK TO TOP BUTTON === */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-yellow);
    color: var(--color-black);
    border: none;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: var(--color-yellow-dark);
    transform: translateY(-3px);
}

/* === ANIMATION CLASSES === */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

.fade-in:nth-child(1) {
    animation-delay: 0.2s;
}

.fade-in:nth-child(2) {
    animation-delay: 0.4s;
}

.fade-in:nth-child(3) {
    animation-delay: 0.6s;
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* === UTILITY CLASSES === */
.bg-black {
    background-color: var(--color-black);
}

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

.bg-yellow {
    background-color: var(--color-yellow);
}

.text-yellow {
    color: var(--color-yellow);
}

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

.text-black {
    color: var(--color-black);
}