/**
 * RCS for Business - Main Stylesheet
 * Custom styles to complement Tailwind CSS
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    --color-primary-50: #eef2ff;
    --color-primary-100: #e0e7ff;
    --color-primary-200: #c7d2fe;
    --color-primary-300: #a5b4fc;
    --color-primary-400: #818cf8;
    --color-primary-500: #6366f1;
    --color-primary-600: #4f46e5;
    --color-primary-700: #4338ca;
    --color-primary-800: #3730a3;
    --color-primary-900: #312e81;
    
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ============================================
   BASE STYLES
   ============================================ */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

/* ============================================
   FORM STYLES
   ============================================ */
input, textarea, select {
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
    outline: none;
}

/* Custom placeholder styling */
::placeholder {
    color: #9ca3af;
    opacity: 1;
}

:-ms-input-placeholder {
    color: #9ca3af;
}

::-ms-input-placeholder {
    color: #9ca3af;
}

/* ============================================
   BUTTON STYLES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(to right, var(--color-primary-600), #7c3aed);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}

.btn-primary:hover {
    background: linear-gradient(to right, #7c3aed, var(--color-primary-600));
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(79, 70, 229, 0.23);
}

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

/* ============================================
   CARD STYLES
   ============================================ */
.card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ============================================
   NAVIGATION STYLES
   ============================================ */
.nav-link {
    position: relative;
    color: #475569;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary-600);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--color-primary-600), #7c3aed);
    transition: width var(--transition-normal);
}

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

/* ============================================
   ANIMATION UTILITIES
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.5s ease-out forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease-out forwards;
}

.animate-pulse-slow {
    animation: pulse 2s ease-in-out infinite;
}

.animate-bounce-slow {
    animation: bounce 2s ease-in-out infinite;
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   SCROLLBAR STYLES
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Dark mode scrollbar */
.dark ::-webkit-scrollbar-track {
    background: #1e293b;
}

.dark ::-webkit-scrollbar-thumb {
    background: #475569;
}

.dark ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* ============================================
   SELECTION STYLES
   ============================================ */
::selection {
    background: var(--color-primary-200);
    color: var(--color-primary-900);
}

.dark ::selection {
    background: var(--color-primary-800);
    color: var(--color-primary-100);
}

/* ============================================
   FOCUS STYLES (Accessibility)
   ============================================ */
:focus-visible {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    a {
        text-decoration: underline;
        color: black !important;
    }
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 640px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 641px) and (max-width: 1024px) {
    .hide-tablet {
        display: none !important;
    }
}

@media (min-width: 1025px) {
    .hide-desktop {
        display: none !important;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-gradient {
    background: linear-gradient(to right, var(--color-primary-600), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(to right, var(--color-primary-600), #7c3aed);
}

.border-gradient {
    border-image: linear-gradient(to right, var(--color-primary-600), #7c3aed) 1;
}

/* Glass morphism effect */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.dark .glass {
    background: rgba(15, 23, 42, 0.7);
}

/* Hover lift effect */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.15);
}

/* ============================================
   FORM VALIDATION STYLES
   ============================================ */
input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
    border-color: #ef4444;
}

input:valid:not(:placeholder-shown),
textarea:valid:not(:placeholder-shown) {
    border-color: #22c55e;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.success-message {
    color: #22c55e;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ============================================
   CUSTOM CHECKBOX/RADIO STYLES
   ============================================ */
.custom-checkbox {
    appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #d1d5db;
    border-radius: 0.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.custom-checkbox:checked {
    background: var(--color-primary-600);
    border-color: var(--color-primary-600);
}

.custom-checkbox:checked::after {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
}

/* ============================================
   TOOLTIP STYLES
   ============================================ */
.tooltip {
    position: relative;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 0.5rem 0.75rem;
    background: #1e293b;
    color: white;
    font-size: 0.75rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.tooltip:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   IMAGE STYLES
   ============================================ */
.img-responsive {
    max-width: 100%;
    height: auto;
}

.img-cover {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

/* ============================================
   VIDEO EMBED STYLES
   ============================================ */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}