/* ============ 全局重置 ============ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Microsoft YaHei', 'Orbitron', 'Segoe UI', sans-serif;
    background: radial-gradient(ellipse at center, #0a1a3a 0%, #050a1f 60%, #000208 100%);
    color: #b3d9ff;
    user-select: none;
}

/* ============ Canvas 背景层 ============ */
#particleCanvas,
#matrixCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#matrixCanvas {
    opacity: 0.18;
    z-index: 0;
}

/* ============ 网格背景 ============ */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(0, 200, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 200, 255, 0.06) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 1;
    pointer-events: none;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    from { background-position: 0 0; }
    to { background-position: 50px 50px; }
}

/* ============ 扫描线 ============ */
body::after {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(0, 224, 255, 0.7), transparent);
    box-shadow: 0 0 20px rgba(0, 224, 255, 0.8);
    z-index: 2;
    animation: scanLine 6s linear infinite;
    pointer-events: none;
}

@keyframes scanLine {
    0% { top: 0; }
    100% { top: 100%; }
}

/* ============ 主容器 ============ */
.main-container {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 60px 1fr 50px;
    grid-template-areas:
        "top top"
        "left right"
        "footer footer";
}

/* ============ 顶部栏 ============ */
.top-bar {
    grid-area: top;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    background: linear-gradient(180deg, rgba(0, 30, 80, 0.6), rgba(0, 30, 80, 0.1));
    border-bottom: 1px solid rgba(0, 224, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 100, 200, 0.3);
    font-size: 12px;
    letter-spacing: 1px;
}

.top-bar-left,
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.top-bar-right {
    justify-content: flex-end;
}

.top-bar-center {
    flex: 1;
    text-align: center;
}

.brand-title {
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 4px;
    color: #00e0ff;
    text-shadow: 0 0 10px rgba(0, 224, 255, 0.8);
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    box-shadow: 0 0 10px #00ff88;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.status-text { color: #00ff88; }
.status-text-green { color: #00ff88; }
.divider { color: rgba(0, 224, 255, 0.4); }
.ip-text em { color: #00e0ff; font-style: normal; }
.time-display { color: #00e0ff; font-family: 'Courier New', monospace; }

/* ============ 左侧装饰区 ============ */
.left-section {
    grid-area: left;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.orbit-container {
    position: relative;
    width: 500px;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.orbit {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(0, 224, 255, 0.3);
}

.orbit-1 {
    width: 100%;
    height: 100%;
    border-style: solid;
    border-color: rgba(0, 224, 255, 0.15);
    animation: spin 30s linear infinite;
}

.orbit-1::before, .orbit-1::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: #00e0ff;
    border-radius: 50%;
    box-shadow: 0 0 20px #00e0ff;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
}
.orbit-1::after { top: auto; bottom: -6px; }

.orbit-2 {
    width: 80%;
    height: 80%;
    animation: spin 20s linear infinite reverse;
    border-color: rgba(120, 0, 255, 0.3);
}

.orbit-3 {
    width: 60%;
    height: 60%;
    border-style: solid;
    border-color: rgba(0, 224, 255, 0.2);
    border-top-color: #00e0ff;
    border-right-color: rgba(0, 224, 255, 0.4);
    animation: spin 15s linear infinite;
    box-shadow: inset 0 0 30px rgba(0, 224, 255, 0.2);
}

.orbit-4 {
    width: 40%;
    height: 40%;
    animation: spin 10s linear infinite reverse;
    border-color: rgba(255, 0, 200, 0.4);
    border-style: dotted;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============ 内部六边形 ============ */
.hex-container {
    position: relative;
    width: 180px;
    height: 200px;
    z-index: 5;
}

.hex-outer {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 224, 255, 0.3), rgba(120, 0, 255, 0.2));
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    padding: 3px;
    animation: hexPulse 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(0, 224, 255, 0.6));
}

.hex-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #001530, #003366);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

@keyframes hexPulse {
    0%, 100% { filter: drop-shadow(0 0 20px rgba(0, 224, 255, 0.6)); }
    50% { filter: drop-shadow(0 0 40px rgba(0, 224, 255, 1)); }
}

.ai-core {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-eye {
    width: 60px;
    height: 60px;
    border: 2px solid #00e0ff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 30px rgba(0, 224, 255, 0.8), inset 0 0 20px rgba(0, 224, 255, 0.4);
    animation: eyeBlink 4s infinite;
}

.ai-pupil {
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, #fff, #00e0ff 40%, #003366);
    border-radius: 50%;
    box-shadow: 0 0 20px #00e0ff;
    animation: pupilMove 5s ease-in-out infinite;
}

@keyframes eyeBlink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

@keyframes pupilMove {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-8px) translateY(-3px); }
    50% { transform: translateX(8px) translateY(3px); }
    75% { transform: translateX(-5px) translateY(5px); }
}

.ai-scan {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 224, 255, 0.5), transparent);
    animation: aiScanMove 3s linear infinite;
}

@keyframes aiScanMove {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* ============ 卫星点 ============ */
.satellite {
    position: absolute;
    width: 16px;
    height: 16px;
    background: #00e0ff;
    border-radius: 50%;
    box-shadow: 0 0 20px #00e0ff, 0 0 40px rgba(0, 224, 255, 0.5);
}

.satellite::after {
    content: '';
    position: absolute;
    top: -8px; left: -8px;
    width: 32px; height: 32px;
    border: 1px solid rgba(0, 224, 255, 0.5);
    border-radius: 50%;
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

.satellite-1 { top: 10%; left: 50%; background: #ff00cc; box-shadow: 0 0 20px #ff00cc; }
.satellite-2 { top: 50%; right: 5%; background: #00ff88; box-shadow: 0 0 20px #00ff88; }
.satellite-3 { bottom: 15%; left: 15%; }
.satellite-4 { top: 25%; left: 10%; background: #ffcc00; box-shadow: 0 0 20px #ffcc00; }
.satellite-5 { bottom: 25%; right: 15%; background: #ff00cc; box-shadow: 0 0 20px #ff00cc; }
.satellite-6 { top: 60%; left: 5%; background: #00ff88; box-shadow: 0 0 20px #00ff88; }

/* ============ 数据面板 ============ */
.data-panel {
    position: absolute;
    bottom: 30px;
    left: 30px;
    width: 320px;
    padding: 15px;
    background: linear-gradient(135deg, rgba(0, 30, 80, 0.6), rgba(0, 10, 40, 0.4));
    border: 1px solid rgba(0, 224, 255, 0.3);
    backdrop-filter: blur(5px);
    font-size: 11px;
    box-shadow: 0 0 30px rgba(0, 100, 200, 0.3);
    clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 15px, 100% 100%, 15px 100%, 0 calc(100% - 15px));
}

.panel-title {
    color: #00e0ff;
    font-weight: bold;
    margin-bottom: 10px;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.panel-dot {
    width: 6px; height: 6px;
    background: #00ff88;
    border-radius: 50%;
    box-shadow: 0 0 8px #00ff88;
    animation: pulse 1s infinite;
}

.data-line {
    color: #8cb3d9;
    font-family: 'Courier New', monospace;
    margin: 4px 0;
    opacity: 0;
    animation: typing 0.5s forwards;
}

.data-line:nth-child(2) { animation-delay: 0.3s; }
.data-line:nth-child(3) { animation-delay: 0.8s; }
.data-line:nth-child(4) { animation-delay: 1.3s; }
.data-line:nth-child(5) { animation-delay: 1.8s; }

@keyframes typing {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.data-bars {
    margin-top: 12px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.bar {
    position: relative;
    height: 18px;
    background: rgba(0, 30, 80, 0.5);
    border: 1px solid rgba(0, 224, 255, 0.3);
    overflow: hidden;
}

.bar span {
    display: block;
    height: 100%;
    width: var(--w);
    background: linear-gradient(90deg, #00e0ff, #00ff88);
    box-shadow: 0 0 10px rgba(0, 224, 255, 0.6);
    animation: barFill 2s ease-out;
}

@keyframes barFill {
    from { width: 0; }
}

.bar em {
    position: absolute;
    top: 50%;
    left: 6px;
    transform: translateY(-50%);
    color: #fff;
    font-style: normal;
    font-size: 10px;
    text-shadow: 0 0 3px #000;
    font-weight: bold;
}

/* ============ 右侧登录区 ============ */
.right-section {
    grid-area: right;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px 60px;
}

/* ============ 系统标题 ============ */
.system-title {
    text-align: center;
    margin-bottom: 30px;
}

.title-main {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 8px;
    background: linear-gradient(90deg, #00e0ff, #00ff88, #00e0ff);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    animation: titleShine 3s linear infinite;
    text-shadow: 0 0 30px rgba(0, 224, 255, 0.5);
}

@keyframes titleShine {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.title-main::before {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    color: transparent;
    -webkit-text-stroke: 1px rgba(0, 224, 255, 0.3);
    z-index: -1;
}

.title-sub {
    margin-top: 10px;
    font-size: 13px;
    letter-spacing: 4px;
    color: #8cb3d9;
}

.title-line {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.title-line span {
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #00e0ff, transparent);
}

.title-line i {
    width: 8px;
    height: 8px;
    background: #00e0ff;
    transform: rotate(45deg);
    box-shadow: 0 0 10px #00e0ff;
}

/* ============ 登录框 ============ */
.login-box {
    position: relative;
    width: 440px;
    padding: 40px 50px 35px;
    background: linear-gradient(135deg, rgba(0, 30, 80, 0.45), rgba(0, 10, 40, 0.55));
    border: 1px solid rgba(0, 224, 255, 0.4);
    backdrop-filter: blur(10px);
    box-shadow:
        0 0 30px rgba(0, 100, 200, 0.4),
        inset 0 0 30px rgba(0, 100, 200, 0.1);
    clip-path: polygon(20px 0, calc(100% - 20px) 0, 100% 20px, 100% calc(100% - 20px), calc(100% - 20px) 100%, 20px 100%, 0 calc(100% - 20px), 0 20px);
}

/* ============ 角装饰 ============ */
.corner {
    position: absolute;
    width: 25px;
    height: 25px;
    border: 2px solid #00e0ff;
    box-shadow: 0 0 10px #00e0ff;
}

.corner-tl { top: -3px; left: -3px; border-right: none; border-bottom: none; }
.corner-tr { top: -3px; right: -3px; border-left: none; border-bottom: none; }
.corner-bl { bottom: -3px; left: -3px; border-right: none; border-top: none; }
.corner-br { bottom: -3px; right: -3px; border-left: none; border-top: none; }

/* ============ HUD标题 ============ */
.hud-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    gap: 12px;
}

.hud-line {
    flex: 1;
    height: 6px;
    background-image: repeating-linear-gradient(
        -45deg,
        #00e0ff 0,
        #00e0ff 3px,
        transparent 3px,
        transparent 8px
    );
    opacity: 0.6;
}

.hud-title {
    color: #00e0ff;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 3px;
    white-space: nowrap;
    text-shadow: 0 0 10px rgba(0, 224, 255, 0.8);
}

/* ============ 输入框 ============ */
.input-group {
    position: relative;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    background: rgba(0, 20, 50, 0.5);
    border: 1px solid rgba(0, 224, 255, 0.4);
    transition: all 0.3s;
    clip-path: polygon(10px 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 10px 100%, 0 50%);
}

.input-group:hover {
    border-color: #00e0ff;
    box-shadow: 0 0 15px rgba(0, 224, 255, 0.4);
}

.input-group:focus-within {
    border-color: #00ff88;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.6);
    background: rgba(0, 30, 70, 0.7);
}

.input-icon {
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #00e0ff;
}

.input-icon svg {
    width: 22px;
    height: 22px;
    filter: drop-shadow(0 0 5px #00e0ff);
}

.input-group input {
    flex: 1;
    height: 50px;
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-size: 14px;
    padding-right: 20px;
    letter-spacing: 1px;
    font-family: inherit;
}

.input-group input::placeholder {
    color: rgba(140, 179, 217, 0.6);
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00ff88, transparent);
    transition: all 0.4s;
    transform: translateX(-50%);
}

.input-group:focus-within .input-line {
    width: 100%;
}

/* ============ 验证码 ============ */
.code-group input {
    flex: 1;
}

#captchaImage {
    width: 140px;
    height: 50px;
    margin-right: 8px;
    cursor: pointer;
    background: rgba(0, 30, 70, 0.5);
    border: 1px solid rgba(0, 224, 255, 0.3);
    border-radius: 2px;
    object-fit: cover;
}

/* ============ 登录选项 ============ */
.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 13px;
}

.checkbox-wrap {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 8px;
    color: #8cb3d9;
}

.checkbox-wrap input {
    display: none;
}

.checkbox-box {
    width: 16px;
    height: 16px;
    border: 1px solid #00e0ff;
    position: relative;
    transition: all 0.3s;
}

.checkbox-wrap input:checked + .checkbox-box {
    background: #00e0ff;
    box-shadow: 0 0 10px #00e0ff;
}

.checkbox-wrap input:checked + .checkbox-box::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 4px; height: 8px;
    border: solid #001530;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forget-link {
    color: #00e0ff;
    text-decoration: none;
    transition: all 0.3s;
}

.forget-link:hover {
    text-shadow: 0 0 8px #00e0ff;
}

/* ============ 登录按钮 ============ */
.login-btn {
    position: relative;
    width: 100%;
    height: 50px;
    background: transparent;
    border: 1px solid #00e0ff;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 6px;
    cursor: pointer;
    overflow: hidden;
    clip-path: polygon(15px 0, calc(100% - 15px) 0, 100% 50%, calc(100% - 15px) 100%, 15px 100%, 0 50%);
    transition: all 0.3s;
    margin-bottom: 25px;
    font-family: inherit;
}

.btn-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, rgba(0, 224, 255, 0.3), rgba(0, 255, 136, 0.3), rgba(0, 224, 255, 0.3));
    background-size: 200% 100%;
    animation: btnBgMove 3s linear infinite;
    z-index: 1;
}

@keyframes btnBgMove {
    0% { background-position: 0% 0; }
    100% { background-position: 200% 0; }
}

.btn-text {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    text-shadow: 0 0 10px rgba(0, 224, 255, 0.8);
}

.btn-arrow {
    color: #00e0ff;
    animation: arrowMove 1s ease-in-out infinite;
}

.btn-arrow:last-child {
    animation-delay: 0.5s;
    transform: scaleX(-1);
}

@keyframes arrowMove {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
}

.btn-arrow:last-child {
    animation: arrowMoveRev 1s ease-in-out infinite;
}

@keyframes arrowMoveRev {
    0%, 100% { transform: scaleX(-1) translateX(0); }
    50% { transform: scaleX(-1) translateX(5px); }
}

.btn-scan {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    z-index: 3;
    transition: left 0.6s;
}

.login-btn:hover {
    box-shadow: 0 0 30px rgba(0, 224, 255, 0.8);
    border-color: #00ff88;
}

.login-btn:hover .btn-scan {
    left: 100%;
}

.login-btn:active {
    transform: scale(0.98);
}

.login-btn.loading .btn-text {
    opacity: 0;
}

.login-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 25px; height: 25px;
    margin: -12px 0 0 -12px;
    border: 2px solid rgba(0, 224, 255, 0.3);
    border-top-color: #00e0ff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 4;
}

/* ============ 其他登录 ============ */
.other-login {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    font-size: 12px;
    color: #8cb3d9;
}

.other-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 224, 255, 0.4), transparent);
}

.other-icons {
    display: flex;
    justify-content: center;
    gap: 25px;
}

.other-icon span {
    position: relative;
    z-index: 1;
    color: #00e0ff;
    font-size: 16px;
    font-weight: bold;
    line-height: 1;
}

.other-icon {
    width: 42px;
    height: 42px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #00e0ff;
    border: 1px solid rgba(0, 224, 255, 0.4);
    border-radius: 50%;
    transition: all 0.3s;
    text-decoration: none;
}

.other-icon:hover {
    background: rgba(0, 224, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 224, 255, 0.6);
    transform: translateY(-3px);
}

.other-icon svg {
    width: 22px;
    height: 22px;
}

/* ============ 注册提示 ============ */
.register-tip {
    margin-top: 20px;
    text-align: center;
    color: #8cb3d9;
    font-size: 13px;
}

.register-tip a {
    color: #00e0ff;
    text-decoration: none;
    transition: all 0.3s;
}

.register-tip a:hover {
    text-shadow: 0 0 8px #00e0ff;
    letter-spacing: 1px;
}

/* ============ 底部 ============ */
.footer {
    grid-area: footer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    font-size: 12px;
    color: rgba(140, 179, 217, 0.7);
    background: linear-gradient(180deg, transparent, rgba(0, 30, 80, 0.5));
    border-top: 1px solid rgba(0, 224, 255, 0.2);
    letter-spacing: 1px;
}

/* ============ Toast ============ */
.toast {
    position: fixed;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    padding: 15px 35px;
    background: rgba(0, 20, 50, 0.95);
    border: 1px solid #00e0ff;
    color: #00e0ff;
    font-size: 14px;
    letter-spacing: 2px;
    box-shadow: 0 0 30px rgba(0, 224, 255, 0.6);
    clip-path: polygon(15px 0, calc(100% - 15px) 0, 100% 50%, calc(100% - 15px) 100%, 15px 100%, 0 50%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s;
    z-index: 9999;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.toast.error {
    border-color: #ff3366;
    color: #ff6688;
    box-shadow: 0 0 30px rgba(255, 51, 102, 0.6);
}

.toast.success {
    border-color: #00ff88;
    color: #00ff88;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.6);
}

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
    .orbit-container { width: 400px; height: 400px; }
    .title-main { font-size: 36px; }
    .login-box { width: 400px; padding: 35px 40px 30px; }
}

@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 1fr;
        grid-template-rows: 60px 1fr auto 50px;
        grid-template-areas: "top" "right" "left" "footer";
    }
    .left-section { display: none; }
    .orbit-container { width: 300px; height: 300px; }
    .right-section { padding: 30px 20px; }
    .top-bar { padding: 0 15px; font-size: 10px; }
    .brand-title { font-size: 11px; letter-spacing: 2px; }
    .top-bar-center { display: none; }
}