/* ==================================
   굿앤컴퍼니 - Custom Styles
   ================================== */

/* CSS Custom Properties */
:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --background: #F8FAFC;
    --text: #1E293B;
    --white: #FFFFFF;
    --slate-100: #F1F5F9;
    --slate-200: #E2E8F0;
    --slate-300: #CBD5E1;
    --slate-400: #94A3B8;
    --slate-500: #64748B;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1E293B;
    --slate-900: #0F172A;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
}

/* Selection */
::selection {
    background-color: var(--primary);
    color: var(--white);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--slate-100);
}

::-webkit-scrollbar-thumb {
    background: var(--slate-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Header */
header {
    transition: background-color 0.3s ease;
}

header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* Mobile Menu Animation */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

#mobileMenu.active {
    max-height: 400px;
}

/* Hero Section */
.hero-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Cards */
.service-card {
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
}

/* Portfolio Filter */
.filter-btn {
    transition: all 0.3s ease;
}

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

/* Portfolio Items */
.portfolio-item {
    transition: all 0.5s ease;
}

.portfolio-item.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.8);
}

.portfolio-item.visible {
    display: block;
    opacity: 1;
    transform: scale(1);
}

/* Process Flow Animation */
.process-step .process-icon {
    transition: all 0.3s ease;
}

.process-step:hover .process-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

/* Counter Animation */
.counter {
    display: inline-block;
}

/* Form Styles */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
select,
textarea {
    transition: all 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Multi-step Form */
.form-step {
    animation: fadeIn 0.3s ease;
}

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

.step-indicator {
    transition: all 0.3s ease;
}

.step-indicator.active {
    background-color: var(--primary);
    color: var(--white);
}

.step-indicator.completed {
    background-color: #22C55E;
    color: var(--white);
}

/* FAQ Accordion */
.faq-item {
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.faq-toggle {
    transition: all 0.3s ease;
}

.faq-toggle i {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle i {
    transform: rotate(180deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-content {
    max-height: 500px;
}

/* Timeline */
.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--slate-200);
    transform: translateX(-50%);
}

/* Image Hover Effect */
.img-hover-zoom {
    overflow: hidden;
}

.img-hover-zoom img {
    transition: transform 0.5s ease;
}

.img-hover-zoom:hover img {
    transform: scale(1.1);
}

/* Gradient Overlays */
.gradient-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

/* Bounce Animation */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

/* Float Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Slide In Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scale Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Utilities */
@media (max-width: 768px) {
    /* Mobile-specific styles */
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    /* Reduce animations on mobile */
    .process-step:hover .process-icon {
        transform: none;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .no-print {
        display: none !important;
    }

    body {
        font-size: 12pt;
    }

    a[href]::after {
        content: " (" attr(href) ")";
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed */
}