/* ???????????????????????????????????????????????????
   StockPulse ? 프리미엄 다크 테마
   ??????????????????????????????????????????????????? */

:root {
    /* 컬러 시스템 */
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a1f2e;
    --bg-card-hover: #222840;
    --bg-input: #151b2b;
    --bg-sidebar: #0d1117;

    --text-primary: #e8ecf4;
    --text-secondary: #8b95a8;
    --text-muted: #5a6478;

    --accent-cyan: #00f0ff;
    --accent-purple: #7c3aed;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-amber: #f59e0b;

    --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #7c3aed 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(0, 240, 255, 0.2);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.1);

    /* 타이포그래피 */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Noto Sans KR', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* 간격 */
    --sidebar-width: 260px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

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

html {
    font-size: 15px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ???????????????????????????????????????????????????
   로그인 페이지
   ??????????????????????????????????????????????????? */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.login-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.login-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.login-bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.login-bg-glow--1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.3), transparent);
    top: -10%;
    left: -5%;
}

.login-bg-glow--2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.3), transparent);
    bottom: -10%;
    right: -5%;
    animation-delay: -7s;
}

.login-bg-glow--3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2), transparent);
    top: 50%;
    left: 60%;
    animation-delay: -14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -40px) scale(1.1);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(10px, 30px) scale(1.05);
    }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: cardEntry 0.6s ease-out;
}

@keyframes cardEntry {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-glow);
    border-radius: 18px;
    margin-bottom: 16px;
}

.login-logo-icon {
    width: 36px;
    height: 36px;
}

.login-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-top: 4px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color 0.2s;
}

.input-wrapper input {
    width: 100%;
    padding: 12px 14px 12px 44px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.93rem;
    outline: none;
    transition: all 0.25s ease;
}

.input-wrapper input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
}

.input-wrapper input:focus~.input-icon,
.input-wrapper:focus-within .input-icon {
    color: var(--accent-cyan);
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
}

.login-error {
    padding: 10px 14px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    color: var(--accent-red);
    font-size: 0.85rem;
    animation: shake 0.4s ease;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-6px);
    }

    75% {
        transform: translateX(6px);
    }
}

.login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 13px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: #0a0e17;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 4px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 240, 255, 0.25);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.3s;
}

.login-btn:hover .login-btn-arrow {
    transform: translateX(4px);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 0.8rem;
}