:root {
    --color-primary: #009966;
    --color-bg-dark: #0f172a;
    --color-text-dark: #0f172b;
    --color-text-secondary: #45556c;
    --color-text-muted: #314158;
    --color-text-divider: #6a7282;
    --color-placeholder: rgba(10, 10, 10, 0.50);
    --color-white: #ffffff;
    --color-border: #e5e7eb;
    --color-divider: #d1d5dc;
    --color-icon-bg: #d1fae5;

    --font-family: 'Inter', sans-serif;

    --shadow-card: 0px 4px 6px rgba(0, 0, 0, 0.10), 0px 10px 15px rgba(0, 0, 0, 0.10);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, rgba(236, 253, 245, 1) 0%, rgba(255, 255, 255, 1) 50%, rgba(236, 253, 245, 1) 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 20px;
    gap: 24px;
}

.login-card {
    background-color: var(--color-white);
    width: 100%;
    max-width: 448px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 48px 32px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
    width: 100%;
}

.icon-wrapper {
    width: 64px;
    height: 64px;
    background-color: var(--color-icon-bg);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 32px;
}

.header-icon {
    width: 32px;
    height: 32px;
}

.welcome-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-dark);
    letter-spacing: -0.60px;
    margin-bottom: 9px;
    text-align: center;
}

.welcome-subtitle {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: -0.18px;
    text-align: center;
}

.login-tabs {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    padding: 4px;
    margin-bottom: 24px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background-color: #f9fafb;
}

.login-tab {
    min-height: 44px;
    padding: 0 12px;
    border: none;
    border-radius: 8px;
    background-color: transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.login-tab:hover {
    color: var(--color-primary);
}

.login-tab.active {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
}

.login-form {
    width: 100%;
}

.login-form[hidden] {
    display: none !important;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-dark);
    letter-spacing: -0.18px;
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    height: 52px;
    padding: 0 48px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background-color: #f9fafb;
    color: var(--color-text-dark);
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 400;
    letter-spacing: -0.18px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder {
    color: var(--color-placeholder);
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 153, 102, 0.1);
}

.input-icon {
    position: absolute;
    width: 20px;
    height: 20px;
    pointer-events: none;
}

.input-icon.left {
    left: 14px;
}

.phone-input-wrapper {
    position: relative;
}

.phone-prefix {
    position: absolute;
    left: 1px;
    top: 1px;
    bottom: 1px;
    width: 86px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border-radius: 7px 0 0 7px;
    border-right: 1px solid var(--color-divider);
    background-color: #f3f4f6;
    color: var(--color-text-dark);
    font-size: 14px;
    font-weight: 700;
    pointer-events: none;
}

.phone-prefix-flag {
    width: 20px;
    height: 14px;
    border-radius: 2px;
    object-fit: cover;
    flex-shrink: 0;
}

.phone-input {
    padding-left: 102px;
    padding-right: 16px;
}

.eye-btn {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.eye-btn:hover {
    opacity: 0.8;
}

.eye-icon {
    width: 20px;
    height: 20px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    margin-top: 8px;
}

.sms-form-actions {
    justify-content: flex-start;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-input {
    width: 16px;
    height: 16px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.checkbox-text {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-muted);
    letter-spacing: -0.18px;
}

.forgot-password {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: -0.18px;
    text-decoration: none;
    transition: opacity 0.2s;
}

.forgot-password:hover {
    opacity: 0.8;
}

.submit-btn {
    width: 100%;
    height: 56px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.submit-btn:hover {
    background-color: #008855;
}

.submit-btn:active {
    transform: scale(0.99);
}

.sms-code-popup .swal2-html-container {
    margin: 0 1.6em 1em;
}

.sms-code-modal-content {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    text-align: left;
}

.sms-code-description {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.sms-code-input {
    width: 100% !important;
    height: 52px;
    margin: 0 !important;
    border: 1px solid var(--color-border) !important;
    border-radius: 8px !important;
    background-color: #f9fafb !important;
    color: var(--color-text-dark) !important;
    font-family: var(--font-family) !important;
    font-size: 22px !important;
    font-weight: 700 !important;
    letter-spacing: 8px;
    text-align: center;
}

.sms-code-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    border-radius: 8px;
    background-color: #ecfdf5;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 700;
}

.divider {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 24px 0;
    gap: 16px;
}

.divider-line {
    flex: 1;
    height: 1px;
    background-color: var(--color-divider);
}

.divider-text {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-divider);
    letter-spacing: -0.18px;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: 4px;
}

.footer-text {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: -0.18px;
}

.register-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: -0.18px;
    text-decoration: none;
    transition: opacity 0.2s;
}

.register-link:hover {
    opacity: 0.8;
}

.external-footer {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: -0.18px;
    text-align: center;
}

.support-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: -0.18px;
    text-decoration: none;
    margin-left: 2px;
    transition: opacity 0.2s;
}

.support-link:hover {
    opacity: 0.8;
}

@media (max-width: 640px) {
    .header-container {
        padding: 0 20px;
    }

    .login-card {
        padding: 32px 24px;
        margin: 0 16px;
    }

    .login-tab {
        font-size: 13px;
        padding: 0 8px;
    }

    .main-content {
        padding: 16px;
    }
}