/* ============================================
   RISM Membership Portal - Main Stylesheet
   Converted from React + Tailwind to Pure CSS
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
    /* Colors - Royal Blue & Gold Theme */
    --color-primary: #1E40AF;          /* Royal Blue */
    --color-primary-dark: #1E3A8A;     /* Darker Blue */
    --color-primary-darker: #1E293B;   /* Darkest Blue */
    --color-gold: #D4AF37;             /* Gold Accent */
    --color-gold-light: #F4E4B7;       /* Light Gold */
    
    /* Neutrals */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Status Colors */
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1E40AF 0%, #1E3A8A 100%);
    --gradient-background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;      /* 4px */
    --spacing-sm: 0.5rem;       /* 8px */
    --spacing-md: 1rem;         /* 16px */
    --spacing-lg: 1.5rem;       /* 24px */
    --spacing-xl: 2rem;         /* 32px */
    --spacing-2xl: 3rem;        /* 48px */
    
    /* Border Radius */
    --radius-sm: 0.375rem;      /* 6px */
    --radius-md: 0.5rem;        /* 8px */
    --radius-lg: 0.75rem;       /* 12px */
    --radius-xl: 1rem;          /* 16px */
    --radius-2xl: 1.5rem;       /* 24px */
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* ============================================
   BASE STYLES
   ============================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   AUTH LAYOUT
   ============================================ */

.auth-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-background);
    padding: 1rem;
}

.auth-container {
    width: 100%;
    max-width: 28rem;
}

.auth-container-wide {
    max-width: 42rem;
}

/* Auth Header (Logo & Title) */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 5rem;
    height: 5rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-lg);
}

.logo-text {
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-white);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    font-size: 1rem;
    color: var(--color-gray-600);
}

/* Auth Card */
.auth-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    border: 1px solid var(--color-gray-100);
}

.auth-card-header {
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.card-description {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: 1rem;
}

.step-divider {
    width: 1rem;
    height: 1rem;
}

.step-active {
    color: var(--color-primary);
    font-weight: 500;
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-600);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-gray-900);
}

.back-icon {
    width: 1rem;
    height: 1rem;
}

/* ============================================
   FORMS
   ============================================ */

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 0.375rem;
}

/* Form Inputs */
.form-input,
.form-select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-select:focus {
    background-color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

/* Input with Icon */
.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-gray-400);
    pointer-events: none;
}

.input-with-icon {
    padding-left: 2.5rem;
}

.input-with-toggle {
    padding-right: 2.5rem;
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: 0;
    transition: color var(--transition-fast);
}

.password-toggle:hover {
    color: var(--color-gray-600);
}

.password-toggle i {
    width: 1.25rem;
    height: 1.25rem;
}

/* Form Rows */
.form-row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.form-row-3-cols {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 0.75rem;
}

/* Checkbox */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-input {
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.checkbox-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    cursor: pointer;
}

/* Terms Box */
.terms-box {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background-color: #EFF6FF;
    border: 1px solid #BFDBFE;
    border-radius: var(--radius-lg);
}

.terms-label {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.6;
    cursor: pointer;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #1E3A8A 0%, #1E293B 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    color: var(--color-gray-700);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-gray-50);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-icon {
    width: 1rem;
    height: 1rem;
}

/* ============================================
   LINKS
   ============================================ */

.link-primary {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.link-primary:hover {
    color: var(--color-primary-dark);
}

.link-sm {
    font-size: 0.875rem;
}

/* ============================================
   OTP INPUT
   ============================================ */

.otp-input-group {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.otp-input {
    width: 3rem;
    height: 3rem;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.otp-input:focus {
    background-color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.otp-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.resend-text {
    color: var(--color-gray-600);
}

.resend-link {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.875rem;
    padding: 0;
}

.resend-link:hover {
    color: var(--color-primary-dark);
}

.demo-hint {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

.demo-hint strong {
    color: var(--color-gray-700);
}

/* ============================================
   VERIFICATION SECTIONS
   ============================================ */

.verification-section {
    padding: 1.5rem;
    border: 2px solid #BFDBFE;
    border-radius: var(--radius-lg);
    background-color: #EFF6FF;
    margin-bottom: 1.5rem;
}

.verification-section.section-verified {
    border-color: #86EFAC;
    background-color: #D1FAE5;
}

.verification-section.section-disabled {
    border-color: var(--color-gray-200);
    background-color: var(--color-gray-50);
    opacity: 0.6;
}

.section-header {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.section-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--color-primary);
    flex-shrink: 0;
}

.verification-section.section-verified .section-icon {
    background-color: var(--color-success);
}

.verification-section.section-disabled .section-icon {
    background-color: var(--color-gray-400);
}

.section-icon .icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--color-white);
}

.section-header-content {
    flex: 1;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
}

.section-description {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* Password Requirements */
.requirements-title {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.requirement-item.met {
    color: var(--color-success);
}

.requirement-icon {
    width: 1rem;
    height: 1rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.text-highlight {
    color: var(--color-gray-900);
    font-weight: 500;
}

.error-text {
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: 0.25rem;
}

/* Success Icon Wrapper */
.success-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    background-color: var(--color-success-light);
    border-radius: 50%;
    margin: 0 auto 1rem;
}

.success-icon {
    width: 2rem;
    height: 2rem;
    color: var(--color-success);
}

/* Info Box */
.info-box {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background-color: #EFF6FF;
    border: 1px solid #BFDBFE;
    border-radius: var(--radius-lg);
    margin-top: 1.5rem;
}

.info-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.info-content {
    flex: 1;
}

.info-text {
    font-size: 0.875rem;
    color: #1E3A8A;
    line-height: 1.6;
}

/* Form Actions */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
}

/* Auth Footer */
.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

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

@media (max-width: 640px) {
    .auth-card {
        padding: 1.5rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .otp-input {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.125rem;
    }
    
    .form-row-3-cols {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}