/* ===== Shared Variables ===== */
:root {
    --gradient-primary: linear-gradient(
        135deg, var(--primary-blue) 0%, var(--primary-green) 100%
    );
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont,
        'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-body);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--link-hover);
}

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    line-height: 1.2;
    color: var(--text-main);
}

h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin-top: 0.75rem;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--section-label-color);
    margin-bottom: 0.75rem;
}

/* ===== Buttons ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(
        135deg, var(--primary-blue) 0%, var(--primary-green) 50%, var(--primary-blue) 100%
    );
    background-size: 200% 200%;
    background-position: 0% 50%;
    color: #fff;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-position 0.5s ease;
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background-position: 100% 50%;
    color: #fff;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--text-main);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--btn-secondary-border);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-secondary:hover {
    border-color: var(--btn-secondary-hover-border);
    color: var(--btn-secondary-hover-color);
}