/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    border: 1px solid var(--border);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--text-primary);
    transition: var(--transition-base);
    z-index: -1;
}

.btn:hover {
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.btn:hover::after {
    left: 0;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

.btn-primary::after {
    background: var(--text-primary);
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 40px;
    transition: var(--transition-base);
}

.card:hover {
    border-color: var(--accent);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.card-text {
    color: var(--text-secondary);
}

/* Forms */
.form-group {
    margin-bottom: 30px;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.form-input, .form-textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: 15px 0;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-textarea {
    min-height: 150px;
    resize: none;
}

/* Section Header */
.section-header {
    margin-bottom: 80px;
    max-width: 800px;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
    display: block;
}

.section-title {
    font-size: 3.5rem;
    margin-bottom: 30px;
}

.section-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}