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

:root {
    --bg-primary: #FDFDFC;
    --bg-secondary: #ffffff;
    --bg-dark-primary: #0a0a0a;
    --bg-dark-secondary: #161615;
    --text-primary: #1b1b18;
    --text-secondary: #706f6c;
    --text-dark-primary: #EDEDEC;
    --text-dark-secondary: #A1A09A;
    --border-color: #e3e3e0;
    --border-dark: #3E3E3A;
    --accent: #f53003;
    --accent-dark: #FF4433;
    --accent-hover: #d42a03;
    --accent-dark-hover: #ff6644;
    --button-bg: #1b1b18;
    --button-text: #ffffff;
    --button-dark-bg: #eeeeec;
    --button-dark-text: #1C1C1A;
    --shadow: inset 0px 0px 0px 1px rgba(26, 26, 0, 0.16);
    --shadow-dark: inset 0px 0px 0px 1px rgba(255, 250, 237, 0.18);
    --font-family: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--bg-dark-primary);
        color: var(--text-dark-primary);
    }
}

.auth-container {
    width: 100%;
    max-width: 448px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.auth-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 8px;
}

.logo-text {
    font-size: 32px;
    font-weight: 700;
    font-family: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent) 0%, #ff6b35 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (prefers-color-scheme: dark) {
    .logo-text {
        background: linear-gradient(135deg, var(--accent-dark) 0%, #ff8c66 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
}

@media (max-width: 640px) {
    .logo-text {
        font-size: 24px;
    }
}

.auth-card {
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow);
    border-radius: 8px;
    padding: 32px;
}

@media (prefers-color-scheme: dark) {
    .auth-card {
        background-color: var(--bg-dark-secondary);
        box-shadow: var(--shadow-dark);
    }
}

.auth-title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--text-primary);
}

@media (prefers-color-scheme: dark) {
    .auth-title {
        color: var(--text-dark-primary);
    }
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

@media (prefers-color-scheme: dark) {
    .form-label {
        color: var(--text-dark-primary);
    }
}

.form-input,
.form-select {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 16px;
    font-family: var(--font-family);
    transition: border-color 0.15s ease;
}

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

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: rgba(25, 20, 0, 0.21);
}

@media (prefers-color-scheme: dark) {
    .form-input,
    .form-select {
        border-color: var(--border-dark);
        background-color: var(--bg-dark-secondary);
        color: var(--text-dark-primary);
    }
    
    .form-input::placeholder {
        color: var(--text-dark-secondary);
    }
    
    .form-input:focus,
    .form-select:focus {
        border-color: #62605b;
    }
}

.phone-group {
    display: flex;
    gap: 8px;
}

.phone-group .country-select {
    flex-shrink: 0;
    width: 120px;
    min-width: 120px;
}

.phone-group .form-input {
    flex: 1;
    min-width: 0;
}

@media (max-width: 480px) {
    .phone-group {
        flex-direction: column;
    }
    
    .phone-group .form-select {
        min-width: 100%;
    }
}

.form-error {
    margin-top: 4px;
    font-size: 14px;
    color: var(--accent);
}

@media (prefers-color-scheme: dark) {
    .form-error {
        color: var(--accent-dark);
    }
}

.btn {
    width: 100%;
    padding: 10px 20px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.btn:hover {
    background-color: #000000;
}

@media (prefers-color-scheme: dark) {
    .btn {
        background-color: var(--button-dark-bg);
        color: var(--button-dark-text);
    }
    
    .btn:hover {
        background-color: #ffffff;
    }
}

.auth-footer {
    margin-top: 24px;
    text-align: center;
}

.auth-footer-text {
    font-size: 14px;
    color: var(--text-secondary);
}

@media (prefers-color-scheme: dark) {
    .auth-footer-text {
        color: var(--text-dark-secondary);
    }
}

.auth-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color 0.15s ease;
}

.auth-link:hover {
    color: var(--accent-hover);
}

@media (prefers-color-scheme: dark) {
    .auth-link {
        color: var(--accent-dark);
    }
    
    .auth-link:hover {
        color: var(--accent-dark-hover);
    }
}

@media (max-width: 640px) {
    body {
        padding: 16px;
    }
    
    .auth-card {
        padding: 24px;
    }
    
    .auth-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .auth-form {
        gap: 20px;
    }
}