/* File: assets/css/style.css */
:root {
    --primary-blue: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-blue: #60a5fa;
    --accent-blue: #93c5fd;
    --background-light: #f0f9ff;
    --background-white: #ffffff;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
    --shadow: 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);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--background-light) 0%, #e0f2fe 100%);
    color: var(--text-dark);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, white, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.header nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.header nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.header nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: white;
    transition: var(--transition);
    transform: translateX(-50%);
}

.header nav a:hover::after {
    width: 80%;
}

.header nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Main Content */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 140px);
}

/* Cards */
.card {
    background: var(--background-white);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.offer-card {
    margin-bottom: 1.5rem;
    animation: slideIn 0.5s ease-out;
}

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

/* Buttons */
.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--text-light) 0%, #475569 100%);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
}

/* Forms */
form {
    background: var(--background-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 500px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease-out;
}

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

form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

form input,
form select,
form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--background-white);
}

form input:focus,
form select:focus,
form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Profile */
.profile-card {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
    animation: scaleIn 0.5s ease-out;
}

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

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 5px solid var(--primary-blue);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
    transition: var(--transition);
}

.profile-photo:hover {
    transform: scale(1.05);
}

/* Offers List */
.offers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.offer-card h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.offer-card p {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.offer-card strong {
    color: var(--text-dark);
}

/* Transaction Details */
.transaction-card {
    max-width: 600px;
    margin: 0 auto;
}

.user-contact {
    background: var(--background-light);
    padding: 1rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    border-left: 4px solid var(--primary-blue);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* Map Container */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--radius);
    overflow: hidden;
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
}

.footer p {
    opacity: 0.9;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .offers-list {
        grid-template-columns: 1fr;
    }
    
    form {
        padding: 1.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-blue);
    animation: spin 1s ease-in-out infinite;
}

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

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-pending {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.status-completed {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
}

.status-cancelled {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}