/*
Theme Name: Tron Nexus
Theme URI: https://mulmangcho.com
Author: Tron Nexus Team
Author URI: https://mulmangcho.com
Description: 트론 코인 전망 전문 플랫폼 테마 - 모던하고 미래지향적인 다크 모드 디자인
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: tron-nexus
Tags: dark, modern, crypto, blockchain, responsive
*/

/* ===============================================
   글로벌 변수 및 리셋
   =============================================== */
:root {
    /* 컬러 스킴 */
    --color-bg-main: #0A192F;
    --color-bg-sub: #1D2E49;
    --color-accent-green: #00E676;
    --color-accent-blue: #29B6F6;
    --color-text-primary: #E0E0E0;
    --color-text-secondary: #9E9E9E;
    --color-text-dark: #0A192F;

    /* 폰트 */
    --font-primary: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Orbitron', 'Roboto', sans-serif;

    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* 브레이크포인트 */
    --breakpoint-mobile: 576px;
    --breakpoint-tablet: 768px;
    --breakpoint-desktop: 1024px;
    --breakpoint-wide: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-main);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===============================================
   타이포그래피
   =============================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-accent-blue);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--color-accent-green);
}

/* ===============================================
   유틸리티 클래스
   =============================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
    color: var(--color-text-dark);
    font-weight: 700;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 230, 118, 0.3);
}

.card {
    background: var(--color-bg-sub);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(41, 182, 246, 0.2);
}

/* ===============================================
   반응형 미디어 쿼리
   =============================================== */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 576px) {
    :root {
        font-size: 13px;
    }
}

/* ===============================================
   애니메이션
   =============================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}