/* ===== 英雄联盟 H5 皮肤兑换系统 - 全局样式 ===== */

/* ---- CSS Variables ---- */
:root {
    --primary: #C8AA6E;        /* 金色主题 */
    --primary-dark: #A8884A;
    --bg-dark: #010A13;        /* LOL 深蓝黑背景 */
    --bg-card: #091428;
    --bg-card-hover: #0A1E3D;
    --text-primary: #F0E6D2;
    --text-secondary: #A09B8C;
    --border: #1E282D;
    --border-gold: #C8AA6E;
    --danger: #E4405F;
    --success: #2ECC71;
    --warning: #F39C12;
    --radius: 8px;
    --radius-lg: 12px;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

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

/* ---- Layout ---- */
.page-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px 16px;
    min-height: 100vh;
}

.page-header {
    text-align: center;
    padding: 30px 0 24px;
}

.page-header .logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    border: 2px solid var(--border-gold);
    background: linear-gradient(135deg, #091428, #0A1E3D);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 36px;
}

.page-header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

.page-header .subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* ---- Card ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.card-gold {
    border-color: var(--border-gold);
}

.card-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* ---- Form ---- */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-input,
.form-select {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-family);
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--border-gold);
    box-shadow: 0 0 0 2px rgba(200, 170, 110, 0.15);
}

.form-input::placeholder {
    color: #3A3A3A;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23C8AA6E' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.form-error {
    font-size: 12px;
    color: var(--danger);
    margin-top: 4px;
    display: none;
}

.form-group.error .form-input,
.form-group.error .form-select {
    border-color: var(--danger);
}

.form-group.error .form-error {
    display: block;
}

/* ---- Button ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 28px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-family);
    transition: all 0.2s;
    letter-spacing: 0.5px;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #010A13;
}

.btn-primary:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    width: 100%;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--border-gold);
}

/* ---- Alert ---- */
.alert {
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 16px;
    text-align: center;
}

.alert-info {
    background: rgba(200, 170, 110, 0.1);
    border: 1px solid rgba(200, 170, 110, 0.3);
    color: var(--primary);
}

.alert-success {
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.3);
    color: var(--success);
}

.alert-danger {
    background: rgba(228, 64, 95, 0.1);
    border: 1px solid rgba(228, 64, 95, 0.3);
    color: var(--danger);
}

.alert-warning {
    background: rgba(243, 156, 18, 0.1);
    border: 1px solid rgba(243, 156, 18, 0.3);
    color: var(--warning);
}

/* ---- Skin Preview ---- */
.skin-preview {
    text-align: center;
    padding: 16px 0;
}

.skin-preview .skin-image {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-gold);
    object-fit: cover;
    background: var(--bg-dark);
}

.skin-preview .skin-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-top: 12px;
}

.skin-preview .skin-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* ---- Activity Info ---- */
.activity-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.activity-info .info-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.activity-info .info-label {
    color: var(--text-secondary);
}

.activity-info .info-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* ---- Status Icon ---- */
.status-icon {
    font-size: 64px;
    text-align: center;
    margin: 20px 0;
}

.status-icon.success { color: var(--success); }
.status-icon.error { color: var(--danger); }
.status-icon.warning { color: var(--warning); }

/* ---- Footer ---- */
.page-footer {
    text-align: center;
    padding: 20px 0;
    font-size: 12px;
    color: var(--text-secondary);
}

/* ---- Loading ---- */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(1, 10, 19, 0.85);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 16px;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    color: var(--primary);
    font-size: 14px;
}

/* ---- Toast ---- */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 14px;
    z-index: 2000;
    animation: slideDown 0.3s ease;
    white-space: nowrap;
}

@keyframes slideDown {
    from { transform: translateX(-50%) translateY(-100%); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.toast-success { background: var(--success); color: #fff; }
.toast-error { background: var(--danger); color: #fff; }

/* ---- Responsive ---- */
@media (min-width: 768px) {
    .page-container {
        padding: 40px 24px;
    }
}

@media (max-width: 360px) {
    .page-container {
        padding: 12px 10px;
    }
    .page-header h1 {
        font-size: 20px;
    }
}