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

body {
    font-family: -apple-system, 'Segoe UI', Arial, sans-serif;
    background: #f0f2f5;
    padding: 6px;
    min-height: 100vh;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background: white;
    padding: 12px 15px;
    border-radius: 4px;
    margin-bottom: 6px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
    text-align: center;
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.logo-img {
    height: 80px;
    width: auto;
    display: block;
}

.tagline {
    font-size: 13px;
    color: #666;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.header-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #f0f0f0;
}

.last-updated {
    font-size: 9px;
    color: #888;
}

.refresh-btn {
    padding: 3px 12px;
    background: #1a237e;
    color: white;
    border: none;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.refresh-btn:hover {
    background: #283593;
}

.refresh-btn:active {
    transform: scale(0.95);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    margin-top: 12px;
    padding: 10px 15px;
    text-align: center;
    background: white;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-text {
    font-size: 12px;
    color: #666;
    display: flex;
    align-items: center;
    gap: 4px;
}

.deepseek-icon {
    display: inline-flex;
    align-items: center;
    margin: 0 2px;
}

.deepseek-icon svg {
    width: 16px;
    height: 16px;
}

.deepseek-text {
    font-weight: 600;
    color: #4A6CF7;
    font-size: 12px;
}

.heart {
    color: #e74c3c;
    font-size: 14px;
    margin-left: 4px;
    animation: heartbeat 1.5s ease-in-out infinite;
}

/* Heartbeat Animation */
@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

/* ============================================
   SERVER GRID - Desktop First
   ============================================ */
.server-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.server-card {
    background: white;
    border-radius: 4px;
    padding: 6px 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

/* ============================================
   SERVER HEADER
   ============================================ */
.server-header {
    margin-bottom: 4px;
    padding-bottom: 3px;
    border-bottom: 1px solid #e8eaf6;
}

.server-location {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.server-top-row {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   FLAG STYLES
   ============================================ */
.flag-icon {
    display: inline-block;
    line-height: 1;
    vertical-align: middle;
    flex-shrink: 0;
}

.flag-icon img {
    display: block;
    width: 20px;
    height: 15px;
    vertical-align: middle;
}

/* ============================================
   COUNTRY NAME & SERVER DOMAIN
   ============================================ */
.country-name {
    font-weight: 600;
    color: #1a237e;
    font-size: 12px;
    line-height: 1.2;
}

.server-domain {
    font-size: 9px;
    color: #666;
    padding-left: 24px;
    line-height: 1.2;
}

/* ============================================
   PORT STATUS GRID
   ============================================ */
.port-status-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
}

.port-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2px 4px;
    background: #f8f9fa;
    border-radius: 2px;
    font-size: 10px;
}

.port-name {
    color: #555;
    font-size: 9px;
    font-weight: 400;
}

.port-status {
    font-size: 11px;
    min-width: 16px;
    text-align: right;
}

/* ============================================
   REFRESH ANIMATION
   ============================================ */
.refreshing {
    opacity: 0.6;
    transition: opacity 0.2s;
}

/* ============================================
   DESKTOP - 3 Cards per row (1200px+)
   ============================================ */
@media (min-width: 1200px) {
    .server-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .server-card {
        padding: 18px 20px;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    }
    
    .flag-icon img {
        width: 32px;
        height: 24px;
    }
    
    .country-name {
        font-size: 16px;
    }
    
    .server-domain {
        font-size: 12px;
        padding-left: 36px;
    }
    
    .port-status-grid {
        gap: 6px;
        margin-top: 8px;
    }
    
    .port-item {
        padding: 6px 10px;
        font-size: 13px;
        border-radius: 4px;
    }
    
    .port-name {
        font-size: 12px;
    }
    
    .port-status {
        font-size: 14px;
        min-width: 20px;
    }
    
    .header {
        padding: 20px 30px;
        border-radius: 8px;
        margin-bottom: 15px;
    }
    
    .logo-img {
        height: 100px;
    }
    
    .tagline {
        font-size: 16px;
    }
    
    .last-updated {
        font-size: 12px;
    }
    
    .refresh-btn {
        padding: 6px 18px;
        font-size: 12px;
        border-radius: 4px;
    }
}

/* ============================================
   TABLET & MEDIUM DESKTOP - 2 Cards per row
   ============================================ */
@media (min-width: 769px) and (max-width: 1199px) {
    .server-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .server-card {
        padding: 14px 16px;
        border-radius: 6px;
    }
    
    .flag-icon img {
        width: 28px;
        height: 20px;
    }
    
    .country-name {
        font-size: 14px;
    }
    
    .server-domain {
        font-size: 11px;
        padding-left: 32px;
    }
    
    .port-status-grid {
        gap: 4px;
        margin-top: 6px;
    }
    
    .port-item {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .port-name {
        font-size: 10px;
    }
    
    .port-status {
        font-size: 12px;
        min-width: 18px;
    }
    
    .header {
        padding: 15px 20px;
        border-radius: 6px;
        margin-bottom: 10px;
    }
    
    .logo-img {
        height: 90px;
    }
    
    .tagline {
        font-size: 14px;
    }
    
    .last-updated {
        font-size: 10px;
    }
    
    .refresh-btn {
        padding: 4px 14px;
        font-size: 10px;
    }
}

/* ============================================
   MOBILE - Your Original Compact Design
   ============================================ */
@media (max-width: 768px) {
    body {
        padding: 4px;
    }
    
    .header {
        padding: 10px 10px;
    }
    
    .logo-img {
        height: 80px;
    }
    
    .tagline {
        font-size: 11px;
    }
    
    .header-bottom {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    
    .server-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 3px;
    }
    
    .server-card {
        padding: 4px 6px;
    }
    
    .server-top-row {
        gap: 4px;
    }
    
    .flag-icon img {
        width: 18px;
        height: 13px;
    }
    
    .country-name {
        font-size: 11px;
    }
    
    .server-domain {
        font-size: 8px;
        padding-left: 22px;
    }
    
    .port-item {
        padding: 2px 3px;
        font-size: 9px;
    }
    
    .port-name {
        font-size: 8px;
    }
    
    .port-status {
        font-size: 10px;
    }
    
    .refresh-btn {
        font-size: 9px;
        padding: 2px 10px;
    }
    
    .footer {
        padding: 8px 10px;
        margin-top: 8px;
    }
    
    .footer-text {
        font-size: 10px;
    }
    
    .deepseek-text {
        font-size: 10px;
    }
    
    .deepseek-icon svg {
        width: 14px;
        height: 14px;
    }
    
    .heart {
        font-size: 12px;
    }
}

/* ============================================
   SMALL PHONES
   ============================================ */
@media (max-width: 480px) {
    .server-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2px;
    }
    
    .server-card {
        padding: 3px 4px;
    }
    
    .server-top-row {
        gap: 3px;
        align-items: center;
    }
    
    .flag-icon {
        flex-shrink: 0;
    }
    
    .flag-icon img {
        width: 16px;
        height: 12px;
    }
    
    .country-name {
        font-size: 10px;
        line-height: 1.2;
        white-space: nowrap;
    }
    
    .server-domain {
        font-size: 7px;
        padding-left: 19px;
        line-height: 1.2;
        word-break: break-all;
    }
    
    .port-status-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .port-item {
        padding: 1px 3px;
        font-size: 8px;
    }
    
    .port-name {
        font-size: 7px;
    }
    
    .port-status {
        font-size: 9px;
    }
    
    .logo-img {
        height: 80px;
    }
    
    .tagline {
        font-size: 9px;
    }
    
    .footer {
        padding: 6px 8px;
        margin-top: 6px;
    }
    
    .footer-text {
        font-size: 9px;
        gap: 2px;
    }
    
    .deepseek-text {
        font-size: 9px;
    }
    
    .deepseek-icon svg {
        width: 12px;
        height: 12px;
    }
    
    .heart {
        font-size: 10px;
    }
}

/* ============================================
   VERY SMALL SCREENS
   ============================================ */
@media (max-width: 360px) {
    .server-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2px;
    }
    
    .server-card {
        padding: 2px 3px;
    }
    
    .server-top-row {
        gap: 2px;
    }
    
    .flag-icon img {
        width: 14px;
        height: 10px;
    }
    
    .country-name {
        font-size: 9px;
    }
    
    .server-domain {
        font-size: 6px;
        padding-left: 16px;
    }
    
    .port-status-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .port-item {
        padding: 1px 2px;
        font-size: 7px;
    }
    
    .port-name {
        font-size: 6px;
    }
    
    .port-status {
        font-size: 8px;
    }
    
    .logo-img {
        height: 80px;
    }
}
/* Security/UX status indicators */
.port-open {
    color: #16803c;
    font-weight: 700;
}

.port-closed {
    color: #c62828;
    font-weight: 700;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}