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

body {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    overflow-x: hidden;
    color: white;
    background: #060d1a;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== HEADER ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 18px 0;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    background: rgba(6, 13, 26, 0.72);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.header .logo-container {
    display: flex;
    align-items: center;
    margin-left: 25px;
    text-decoration: none;
    color: inherit;
}

.header .logo-container img {
    height: 46px;
    margin-right: 10px;
}

.header .logo {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: white;
}

.nav {
    display: flex;
    gap: 50px;
    margin-right: 30px;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: rgba(255,255,255,0.72);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2A6BFF;
    border-radius: 1px;
    transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav a:hover { color: white; }
.nav a:hover::after { width: 100%; }

.hamburger {
    display: none;
    font-size: 22px;
    cursor: pointer;
    color: white;
    z-index: 105;
    margin-right: 25px;
    background: none;
    border: none;
    padding: 0;
}

/* ===== MAIN CONTENT ===== */
.center-main {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 100px 20px 40px;
}

.center-card {
    max-width: 800px;
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(24px) saturate(1.4);
    -webkit-backdrop-filter: blur(24px) saturate(1.4);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.3);
    animation: fadeUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    opacity: 0;
    transform: translateY(30px);
}

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

.center-card-inner {
    padding: 40px 36px;
    position: relative;
}

/* ===== TITLE ===== */
.center-flag {
    width: 48px;
    height: 32px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 12px;
    border: 1px solid rgba(255,255,255,0.1);
}

.center-title {
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.center-sub {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 28px;
}

/* ===== UPDATE BADGE ===== */
.update-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(42, 107, 255, 0.1);
    border: 1px solid rgba(42, 107, 255, 0.2);
    font-size: 0.72rem;
    font-weight: 600;
    color: #6b9fff;
    letter-spacing: 0.5px;
    cursor: default;
}

.update-badge i {
    font-size: 0.7rem;
}

/* ===== SECTIONS ===== */
.info-section {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    padding: 16px;
    border-radius: 16px;
    margin-bottom: 14px;
}

.info-section-title {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: 10px;
    text-align: center;
}

.info-fields {
    display: flex;
    gap: 10px;
}

.info-field {
    flex: 1;
    min-width: 0;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.85);
    padding: 10px 14px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.82rem;
    text-align: center;
    position: relative;
    word-break: break-word;
    transition: border-color 0.3s;
}

.info-field:hover {
    border-color: rgba(255,255,255,0.15);
}

.info-field.copyable {
    padding-right: 34px;
    cursor: pointer;
}

.info-field .copy-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: rgba(255,255,255,0.4);
    font-size: 0.75rem;
    transition: color 0.3s;
}

.info-field .copy-icon:hover {
    color: #6b9fff;
}

/* ===== ROW (2 cols) ===== */
.info-row {
    display: flex;
    gap: 14px;
}

.info-row .info-section {
    flex: 1;
    min-width: 0;
}

/* ===== OTHERS POPUP ===== */
.others-popup {
    display: none;
    position: fixed;
    background: rgba(6, 13, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: white;
    padding: 18px 22px;
    border-radius: 16px;
    max-width: 350px;
    min-width: 220px;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    z-index: 99999;
    white-space: pre-line;
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ===== BUTTONS ===== */
.center-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

.center-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 999px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.3px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.3s ease;
}

.center-btn:hover {
    transform: translateY(-1px);
}

.center-btn-primary {
    background: linear-gradient(135deg, #2A6BFF, #4d8bff);
    color: white;
    box-shadow: 0 4px 20px rgba(42, 107, 255, 0.3);
}

.center-btn-primary:hover {
    box-shadow: 0 8px 30px rgba(42, 107, 255, 0.45);
}

.center-btn-outline {
    background: transparent;
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.15);
}

.center-btn-outline:hover {
    border-color: rgba(255,255,255,0.35);
    color: white;
}

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    padding: 20px;
    z-index: 1000;
}

.modal-card {
    background: rgba(6, 13, 26, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    color: white;
    padding: 32px;
    border-radius: 24px;
    max-width: 500px;
    width: 100%;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
    position: relative;
}

.modal-card h3 {
    margin: 0 0 20px;
    text-align: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    cursor: pointer;
    font-size: 18px;
    color: rgba(255,255,255,0.5);
    transition: color 0.3s;
    background: none;
    border: none;
}

.modal-close:hover { color: white; }

.modal-card input,
.modal-card textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    margin-bottom: 14px;
    border-radius: 12px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.3s;
}

.modal-card input:focus,
.modal-card textarea:focus {
    border-color: #2A6BFF;
}

.modal-card input::placeholder,
.modal-card textarea::placeholder {
    color: rgba(255,255,255,0.35);
}

.modal-card textarea {
    min-height: 120px;
    resize: vertical;
}

.modal-submit {
    width: 100%;
    padding: 14px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, #2A6BFF, #4d8bff);
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 20px rgba(42, 107, 255, 0.3);
}

.modal-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(42, 107, 255, 0.45);
}

/* ===== SNACKBAR ===== */
#snackbar {
    visibility: hidden;
    min-width: 280px;
    margin-left: -140px;
    background: linear-gradient(135deg, #2A6BFF, #4d8bff);
    color: white;
    text-align: center;
    border-radius: 999px;
    padding: 14px 24px;
    position: fixed;
    z-index: 1000;
    left: 50%;
    bottom: 30px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                bottom 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

#snackbar.show {
    visibility: visible;
    opacity: 1;
    bottom: 50px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        height: 100dvh;
        width: 280px;
        margin-right: 0;
        background: rgba(6, 13, 26, 0.95);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 30px 30px;
        gap: 28px;
        border-left: 1px solid rgba(255,255,255,0.06);
        opacity: 0;
        visibility: hidden;
        transform: translateX(100%);
        transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                    visibility 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .nav.show {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }

    .nav a { font-size: 15px; }
    .hamburger { display: block; }
    .header .logo { font-size: 13px; }
    .header .logo-container img { height: 34px; }
}

@media (max-width: 768px) {
    .center-card-inner { padding: 28px 20px; }
    .center-title { font-size: 1.5rem; }
    .info-row { flex-direction: column; gap: 14px; }
    .info-fields { flex-direction: column; }
    .center-actions { flex-direction: column; align-items: stretch; }
    .center-btn { justify-content: center; }
}