/* ==========================================================================
   NIA YETU - PREMIUM LOGIN PAGE STYLES
   Kenyan Flag Theme: Black, Red, Green, White, Gold
   ========================================================================== */

:root {
    /* Kenyan Flag Colors - Premium Variations */
    --kenya-black: #000000;
    --kenya-black-light: #1a1a1a;
    --kenya-red: #BB0000;
    --kenya-red-light: #d32f2f;
    --kenya-green: #006600;
    --kenya-green-light: #007a33;
    --kenya-white: #FFFFFF;
    --kenya-gold: #FFD700;
    --kenya-gold-light: #FFE44D;
    
    /* Premium Color Palette */
    --premium-dark: #0a0a0a;
    --premium-gray: #2d2d2d;
    --premium-light: #f8f9fa;
    --premium-accent: #8B4513; /* Kenyan soil color */
    
    /* Gradients */
    --gradient-kenya: linear-gradient(135deg, 
        var(--kenya-black) 0%, 
        var(--kenya-red) 50%, 
        var(--kenya-green) 100%);
    
    --gradient-premium: linear-gradient(135deg,
        rgba(0, 0, 0, 0.95) 0%,
        rgba(187, 0, 0, 0.15) 50%,
        rgba(0, 102, 0, 0.95) 100%);
    
    /* Typography */
    --font-primary: 'Raleway', sans-serif;
    --font-secondary: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
    
    /* Effects */
    --shadow-subtle: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-premium: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-kenya: 0 8px 32px rgba(187, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(255, 215, 0, 0.3);
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-2xl: 32px;
    --radius-round: 50%;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Premium Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(45deg, rgba(0, 0, 0, 0.03) 25%, transparent 25%) 0 0,
        linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.03) 75%) 0 0,
        linear-gradient(45deg, rgba(0, 0, 0, 0.03) 25%, transparent 25%) 1rem 1rem,
        linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.03) 75%) 1rem 1rem;
    background-size: 2rem 2rem;
    background-color: var(--kenya-white);
    z-index: -1;
    opacity: 0.7;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-premium);
    opacity: 0.05;
    z-index: -1;
}

/* ==========================================================================
   HEADER ADJUSTMENTS FOR LOGIN PAGE
   ========================================================================== */

/* Ensure navbar is visible but subtle on login page */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid transparent;
    border-image: var(--gradient-kenya);
    border-image-slice: 1;
}

/* ==========================================================================
   MAIN LOGIN CONTAINER
   ========================================================================== */

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.7) 0%,
        rgba(187, 0, 0, 0.4) 50%,
        rgba(0, 102, 0, 0.7) 100%);
    z-index: -1;
    opacity: 0.3;
}

form {
    max-width: 480px;
    margin: var(--space-xl) auto;
    padding: 0 var(--space-md);
    position: relative;
    z-index: 1;
}

/* Premium Form Container */
.form-structor {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 
        var(--shadow-premium),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    transition: var(--transition-smooth);
}

.form-structor:hover {
    transform: translateY(-2px);
    box-shadow: 
        var(--shadow-kenya),
        0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* Decorative Elements */
.form-structor::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-kenya);
    z-index: 2;
}

.form-structor::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: calc(var(--radius-2xl) - 10px);
    pointer-events: none;
    z-index: 1;
}

/* ==========================================================================
   SIGNUP SECTION STYLING
   ========================================================================== */

.signup {
    padding: var(--space-xl);
    position: relative;
}

/* Form Title */
.form-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
    background: var(--gradient-kenya);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    padding-bottom: var(--space-sm);
}

.form-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-kenya);
    border-radius: var(--radius-round);
}

/* Flash and Error Messages */
.flash-message,
.error-message {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    text-align: center;
    font-weight: 600;
    transition: var(--transition-smooth);
    animation: slideIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.flash-message {
    background: linear-gradient(135deg, rgba(0, 102, 0, 0.1), rgba(0, 102, 0, 0.05));
    color: var(--kenya-green);
    border: 1px solid rgba(0, 102, 0, 0.2);
    box-shadow: var(--shadow-subtle);
}

.error-message {
    background: linear-gradient(135deg, rgba(187, 0, 0, 0.1), rgba(187, 0, 0, 0.05));
    color: var(--kenya-red);
    border: 1px solid rgba(187, 0, 0, 0.2);
    box-shadow: var(--shadow-subtle);
}

/* Form Holder */
.form-holder {
    margin-bottom: var(--space-lg);
}

/* Input Fields */
.input {
    width: 100%;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    background: rgba(255, 255, 255, 0.9);
    transition: var(--transition-smooth);
    color: var(--premium-dark);
}

.input:focus {
    outline: none;
    border-color: var(--kenya-red);
    box-shadow: 0 0 0 3px rgba(187, 0, 0, 0.1);
    background: var(--kenya-white);
}

.input::placeholder {
    color: rgba(0, 0, 0, 0.5);
    font-weight: 400;
}

/* Password Wrapper */
.password-wrapper {
    position: relative;
    margin-bottom: var(--space-md);
}

.password-wrapper .input {
    padding-right: 60px;
    margin-bottom: 0;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--kenya-green);
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1.25rem;
    transition: var(--transition-smooth);
    border-radius: var(--radius-round);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    background: rgba(0, 102, 0, 0.1);
    color: var(--kenya-green-light);
}

.toggle-password:active {
    transform: translateY(-50%) scale(0.95);
}

/* Remember Me Checkbox */
.remember-me {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--premium-gray);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-xs) 0;
    transition: var(--transition-smooth);
}

.remember-me:hover {
    color: var(--kenya-red);
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.remember-me input[type="checkbox"]:checked {
    background: var(--kenya-green);
    border-color: var(--kenya-green);
}

.remember-me input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: var(--space-md);
    background: var(--gradient-kenya);
    color: var(--kenya-white);
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
    text-decoration: none;
    text-align: center;
    margin-bottom: var(--space-md);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-smooth);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.submit-btn:hover::before {
    left: 100%;
}

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

/* Forgot Password Link */
.forgot-link {
    display: block;
    text-align: center;
    color: var(--kenya-red);
    text-decoration: none;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-md);
    transition: var(--transition-smooth);
    position: relative;
    padding-bottom: 2px;
}

.forgot-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--kenya-red);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

.forgot-link:hover {
    color: var(--kenya-red-light);
}

.forgot-link:hover::after {
    width: 100%;
}

/* OR Divider */
.or-divider {
    text-align: center;
    margin: var(--space-lg) 0;
    color: var(--premium-gray);
    position: relative;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.or-divider::before,
.or-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1));
}

.or-divider::before {
    left: 0;
}

.or-divider::after {
    right: 0;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.1), transparent);
}

/* Sign Up Button (Second Button) */
.submit-btn:nth-of-type(2) {
    background: linear-gradient(135deg, var(--kenya-green), var(--kenya-green-light));
    margin-top: var(--space-sm);
}

.submit-btn:nth-of-type(2):hover {
    background: linear-gradient(135deg, var(--kenya-green-light), var(--kenya-green));
}

/* ==========================================================================
   WHY LOGIN SECTION
   ========================================================================== */

.why-login {
    max-width: 600px;
    margin: var(--space-xl) auto;
    padding: 0 var(--space-md);
}

.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-kenya);
}

.login-container h3 {
    font-size: var(--font-size-2xl);
    color: var(--kenya-black);
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.login-container h6 {
    font-size: var(--font-size-lg);
    color: var(--kenya-green);
    margin-bottom: var(--space-md);
    font-weight: 600;
    font-style: italic;
}

.features {
    color: var(--premium-gray);
    font-size: var(--font-size-md);
    line-height: 1.6;
    margin-bottom: var(--space-sm);
}

.features strong {
    color: var(--kenya-red);
    font-weight: 700;
}

/* Emoji Styling */
.features {
    font-size: var(--font-size-lg);
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet */
@media (max-width: 768px) {
    form {
        max-width: 90%;
        margin: var(--space-lg) auto;
    }
    
    .form-structor {
        border-radius: var(--radius-xl);
    }
    
    .signup {
        padding: var(--space-lg);
    }
    
    .form-title {
        font-size: var(--font-size-3xl);
    }
    
    .login-container {
        padding: var(--space-lg);
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --space-xl: 2rem;
        --space-lg: 1.5rem;
        --space-md: 1rem;
    }
    
    form {
        max-width: 95%;
        padding: 0 var(--space-sm);
    }
    
    .signup {
        padding: var(--space-md);
    }
    
    .form-title {
        font-size: var(--font-size-2xl);
    }
    
    .input {
        padding: var(--space-sm);
    }
    
    .submit-btn {
        padding: var(--space-sm);
        font-size: var(--font-size-md);
    }
    
    .login-container {
        padding: var(--space-md);
    }
    
    .login-container h3 {
        font-size: var(--font-size-xl);
    }
    
    .login-container h6 {
        font-size: var(--font-size-md);
    }
    
    .features {
        font-size: var(--font-size-sm);
    }
}

/* Small Mobile */
@media (max-width: 360px) {
    .form-structor {
        border-radius: var(--radius-lg);
    }
    
    .signup {
        padding: var(--space-sm);
    }
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .form-structor:hover,
    .submit-btn:hover {
        transform: none;
    }
}

@media (prefers-contrast: high) {
    .form-structor {
        border: 2px solid var(--kenya-black);
    }
    
    .input {
        border: 2px solid var(--kenya-black);
    }
    
    .submit-btn {
        border: 2px solid var(--kenya-white);
    }
}

/* ==========================================================================
   DARK MODE SUPPORT
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    }
    
    body::before {
        opacity: 0.05;
    }
    
    .form-structor {
        background: rgba(26, 26, 26, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .input {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: var(--kenya-white);
    }
    
    .input::placeholder {
        color: rgba(255, 255, 255, 0.5);
    }
    
    .input:focus {
        background: rgba(255, 255, 255, 0.1);
    }
    
    .remember-me {
        color: rgba(255, 255, 255, 0.8);
    }
    
    .login-container {
        background: rgba(26, 26, 26, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .login-container h3 {
        color: var(--kenya-white);
    }
    
    .features {
        color: rgba(255, 255, 255, 0.8);
    }
    
    .or-divider {
        color: rgba(255, 255, 255, 0.6);
    }
    
    .or-divider::before,
    .or-divider::after {
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1));
    }
    
    .or-divider::after {
        background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), transparent);
    }
}

/* ==========================================================================
   LOADING STATE
   ========================================================================== */

.submit-btn.loading {
    position: relative;
    color: transparent;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--kenya-white);
    border-radius: var(--radius-round);
    animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .form-structor,
    .login-container {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .submit-btn,
    .toggle-password {
        display: none;
    }
    
    .input {
        border: 1px solid #000;
        background: none;
    }
}