@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&display=swap");

/* ===================================
   VARIABLES CSS
   =================================== */
:root {
    --primary-color: #1e90ff;
    --primary-dark: #0a2463;
    --secondary-color: #3b82f6;
    --secondary-dark: #1e3a8a;
    --gradient-primary: linear-gradient(135deg, #1e90ff 0%, #274592ff 100%);
    --gradient-secondary: linear-gradient(90deg, #08277dff, #3b82f6);
    --gradient-button: linear-gradient(to right, #1e90ff 0%, #0a2463 100%);

    --text-primary: #1a202c;
    --text-secondary: #718096;
    --text-muted: #a0aec0;

    --border-color: #e2e8f0;
    --input-bg: #f7fafc;
    --focus-color: #0e32cfff;

    --error-color: #ef4444;
    --error-bg: #fee2e2;
    --error-border: #f87171;

    --success-color: #065f46;
    --success-bg: #d1fae5;
    --success-border: #10b981;

    --white: #ffffff;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.1);
    --shadow-blue: 0 10px 20px rgba(66, 153, 225, 0.25);
    --shadow-blue-lg: 0 15px 30px rgba(66, 153, 225, 0.3);
}

/* ===================================
   BASE STYLES
   =================================== */
body {
    font-family: "DM Sans", sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding-top: 6rem;
}

/* ===================================
   NAVBAR
   =================================== */
.navbar {
    background: var(--gradient-secondary);
    box-shadow: var(--shadow-sm);
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-link {
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    transition: color 0.2s;
    text-decoration: none;
}

.nav-link:hover {
    color: #bfdbfe;
}

/* ===================================
   CONTAINERS
   =================================== */
.auth-container {
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 500px;
    margin: 2rem;
}

.login-card {
    background-color: var(--white);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 90%;
    padding: 2.5rem;
    text-align: center;
    margin-top: 0;
    position: relative;
}

.logo-container {
    width: 80px;
    height: 80px;
    background: linear-gradient(
        135deg,
        var(--primary-dark) 0%,
        var(--primary-color) 100%
    );
    border-radius: 50%;
    margin: -6.5rem auto 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-blue);
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ===================================
   TYPOGRAPHY
   =================================== */
.auth-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.link-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.link-text a {
    color: #4299e1;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.link-text a:hover {
    color: #2b6cb0;
}

/* ===================================
   FORMS
   =================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.input-wrapper {
    position: relative;
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    width: 1rem;
    height: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-input {
    width: 100%;
    padding: 0.75rem 3rem 0.75rem 3rem;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    transition: all 0.3s ease;
    outline: none;
    font-size: 1rem;
}

.form-input:focus {
    border-color: var(--focus-color);
    box-shadow: 0 0 0 3px rgba(4, 45, 179, 0.2);
}

.password-toggle-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.password-toggle-icon:hover {
    color: #4a5568;
}

/* ===================================
   BUTTONS
   =================================== */
.auth-btn {
    width: 100%;
    padding: 1rem;
    font-weight: 600;
    color: var(--white);
    background: var(--gradient-button);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-blue);
    font-size: 1.1rem;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue-lg);
}

/* ===================================
   ALERTS
   =================================== */
.alert-error {
    background-color: var(--error-bg);
    color: var(--error-color);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: left;
    border: 1px solid var(--error-border);
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success-color);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: left;
    border: 1px solid var(--success-border);
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ===================================
   UTILITIES
   =================================== */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.text-center {
    text-align: center;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mt-6 {
    margin-top: 1.5rem;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 768px) {
    .auth-container {
        padding: 1.5rem;
        margin: 1rem;
    }

    .login-card {
        padding: 2rem;
    }

    .navbar {
        padding: 1rem;
    }
}