/**
 * SAJI RASA - Login Page Styles
 * 
 * Design: Apple HIG-inspired
 * Principles: Clarity, Deference, Consistency
 * Location: assets/css/login.css
 */

/* ===== CSS RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Neutral & Professional */
    --color-primary: #007AFF;
    --color-primary-dark: #0051D5;
    --color-success: #34C759;
    --color-error: #FF3B30;
    --color-warning: #FF9500;
    
    /* Neutral Colors */
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-border: #d2d2d7;
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f5f5f7;
    --color-bg-tertiary: #fafafa;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ea 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--color-text-primary);
    line-height: 1.5;
}

/* ===== LOGIN CONTAINER ===== */
.login-container {
    width: 100%;
    max-width: 420px;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== LOGIN CARD ===== */
.login-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

/* ===== HEADER ===== */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 15px;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* ===== ALERTS ===== */
.alert {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    transition: opacity 0.3s ease;
}

.alert-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.alert-success {
    background: rgba(52, 199, 89, 0.1);
    color: #248a3d;
    border: 1px solid rgba(52, 199, 89, 0.2);
}

.alert-error {
    background: rgba(255, 59, 48, 0.1);
    color: #c5221f;
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert-warning {
    background: rgba(255, 149, 0, 0.1);
    color: #b75000;
    border: 1px solid rgba(255, 149, 0, 0.2);
}

/* ===== FORM ===== */
.login-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group-inline {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

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

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

.form-input.input-error:focus {
    box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.1);
}

/* ===== PASSWORD INPUT ===== */
.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.password-toggle:hover {
    opacity: 1;
}

.eye-icon {
    font-size: 18px;
}

/* ===== FORM ERROR ===== */
.form-error {
    margin-top: 6px;
    font-size: 13px;
    color: var(--color-error);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ===== CHECKBOX ===== */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--color-text-secondary);
    user-select: none;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-family);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-block {
    width: 100%;
}

.btn-text {
    display: inline-block;
}

/* ===== FOOTER ===== */
.login-footer {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.footer-text {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
    }
    
    .login-title {
        font-size: 28px;
    }
    
    body {
        padding: 16px;
    }
}

/* ===== ACCESSIBILITY ===== */
.form-input:focus-visible,
.btn:focus-visible,
.password-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===== ANIMATIONS ===== */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.input-error {
    animation: shake 0.3s ease;
}