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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    color: var(--text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    transition: background 0.45s ease, color 0.45s ease;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

.container {
    width: min(1100px, 90vw);
    margin: 0 auto;
}

.section {
    padding: 4rem 0;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.9rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

input::placeholder,
textarea::placeholder {
    color: var(--text-light-muted);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.12);
    background: rgba(255, 255, 255, 0.12);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--primary-color);
    font-weight: 700;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.btn:hover,
.btn:focus {
    transform: translateY(-2px);
    box-shadow: 0 18px 28px rgba(0, 0, 0, 0.16);
    filter: brightness(1.03);
    outline: none;
}

.btn.secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--soft-shadow);
}