/* ===== BASE STYLES - Shared across all pages ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #000000;
    color: #ffffff;
    line-height: 1.5;
    scroll-behavior: smooth;
}

/* custom yellow shades */
:root {
    --yellow: #FFC107;
    --yellow-dark: #FFD700;
    --black: #000000;
    --white: #ffffff;
    --gray: #f5f5f5;
    --gray-dark: #1a1a1a;
}

/* container utility */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* typography */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.8rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--yellow);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    display: inline-block;
}

/* buttons & cta - shared */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 2px solid var(--yellow);
    color: var(--yellow);
    font-weight: 700;
    padding: 12px 28px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    border-radius: 40px;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--yellow);
    color: #000000;
    border: 2px solid var(--yellow);
}

.btn-primary:hover {
    background: transparent;
    color: var(--yellow);
    transform: translateY(-3px);
}

.btn-outline:hover {
    background: var(--yellow);
    color: #000;
    transform: translateY(-3px);
}

/* navigation - shared */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    gap: 20px;
}

/* Logo area with image + text */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    cursor: pointer;
}

.logo-img {
    width: 52px;
    height: 52px;
    border-radius: 60%;
    object-fit: cover;
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, border-color 0.2s;
    border: 2px solid var(--yellow);
    box-shadow: 0 0 0 1px rgba(255, 193, 7, 0.3);
}

.logo-img img {
    width: 100%;
    height: 100%;
    border-radius: 60%;
    object-fit: cover;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--yellow);
}

.logo-sub {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #ffffff;
    margin-top: 2px;
}

.logo-tag {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1;
    color: #aaa;
    margin-top: 2px;
}

/* Desktop nav links */
.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: #fff;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--yellow);
}

.logo-wrapper:hover .logo-img {
    transform: scale(1.02);
    border-color: #FFD966;
}

/* footer - shared */
footer {
    border-top: 1px solid #1f1f1f;
    padding: 40px 0;
    margin-top: 40px;
    text-align: center;
    color: #777;
}

section {
    scroll-margin-top: 80px;
}

.alert-message {
    margin-top: 16px;
    padding: 12px;
    border-radius: 40px;
    text-align: center;
    background: #2e2e2e;
    color: var(--yellow);
    font-weight: 500;
}

/* hamburger menu - shared */
.hamburger {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px 0;
    background-color: var(--yellow);
    transition: all 0.3s ease;
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

body.menu-open {
    overflow: hidden;
}

/* ===== SCROLL TO TOP BUTTON ===== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--yellow);
    color: #000000;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

.scroll-to-top:hover {
    background: var(--yellow-dark);
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.3);
}

.scroll-to-top:active {
    transform: translateY(0);
}

/* Mobile adjustment */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }
}