/* CSS Framework - Base Styles */

/* Reset and Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    color: #2d3748;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    max-width: 100vw;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #1a202c;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

a {
    color: #52b788;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #40916c;
}

/* Lists */
ul, ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1.5;
}

.btn-primary {
    background-color: #52b788;
    color: white;
}

.btn-primary:hover {
    background-color: #40916c;
    color: white;
}

.btn-secondary {
    background-color: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background-color: #cbd5e0;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #374151;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #52b788;
    box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.1);
}

textarea.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.75rem;
}

.col {
    flex: 1;
    padding: 0 0.75rem;
}

.col-1 { flex: 0 0 8.333333%; }
.col-2 { flex: 0 0 16.666667%; }
.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333333%; }
.col-5 { flex: 0 0 41.666667%; }
.col-6 { flex: 0 0 50%; }
.col-7 { flex: 0 0 58.333333%; }
.col-8 { flex: 0 0 66.666667%; }
.col-9 { flex: 0 0 75%; }
.col-10 { flex: 0 0 83.333333%; }
.col-11 { flex: 0 0 91.666667%; }
.col-12 { flex: 0 0 100%; }

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-block { display: inline-block; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }

/* Responsive Utilities */
@media (min-width: 768px) {
    .md\:col-1 { flex: 0 0 8.333333%; }
    .md\:col-2 { flex: 0 0 16.666667%; }
    .md\:col-3 { flex: 0 0 25%; }
    .md\:col-4 { flex: 0 0 33.333333%; }
    .md\:col-5 { flex: 0 0 41.666667%; }
    .md\:col-6 { flex: 0 0 50%; }
    .md\:col-7 { flex: 0 0 58.333333%; }
    .md\:col-8 { flex: 0 0 66.666667%; }
    .md\:col-9 { flex: 0 0 75%; }
    .md\:col-10 { flex: 0 0 83.333333%; }
    .md\:col-11 { flex: 0 0 91.666667%; }
    .md\:col-12 { flex: 0 0 100%; }
    
    .md\:d-none { display: none; }
    .md\:d-block { display: block; }
    .md\:d-flex { display: flex; }
}

@media (min-width: 1024px) {
    .lg\:col-1 { flex: 0 0 8.333333%; }
    .lg\:col-2 { flex: 0 0 16.666667%; }
    .lg\:col-3 { flex: 0 0 25%; }
    .lg\:col-4 { flex: 0 0 33.333333%; }
    .lg\:col-5 { flex: 0 0 41.666667%; }
    .lg\:col-6 { flex: 0 0 50%; }
    .lg\:col-7 { flex: 0 0 58.333333%; }
    .lg\:col-8 { flex: 0 0 66.666667%; }
    .lg\:col-9 { flex: 0 0 75%; }
    .lg\:col-10 { flex: 0 0 83.333333%; }
    .lg\:col-11 { flex: 0 0 91.666667%; }
    .lg\:col-12 { flex: 0 0 100%; }
    
    .lg\:d-none { display: none; }
    .lg\:d-block { display: block; }
    .lg\:d-flex { display: flex; }
}