/* ===================================
   Layout CSS - 공통 레이아웃 스타일
   =================================== */

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Text Utilities */
.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent {
    color: var(--primary);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.about-section .section-header {
    margin-bottom: 28px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
}

.about-section .section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    line-height: 1.3;
}

.about-section .section-tag {
    margin-bottom: 10px;
}

.skills-section .section-header {
    margin-bottom: 28px;
}

.skills-section .section-title {
    font-size: clamp(1.5rem, 3.5vw, 2.1rem);
    line-height: 1.3;
}

.skills-section .section-tag {
    margin-bottom: 10px;
}

.archiving-section .section-header {
    margin-bottom: 28px;
}

.archiving-section .section-title {
    font-size: clamp(1.5rem, 3.5vw, 2.1rem);
    line-height: 1.3;
}

.archiving-section .section-tag {
    margin-bottom: 10px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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