* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --primary: #0a0e17;
    --secondary: #1a2332;
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.6);
    --accent-dark: #0099cc;
    --text: #e0e0e0;
    --text-muted: #a0a0a0;
    --success: #00cc88;
    --error: #ff3366;
    --gold: #ffd700;
    --silver: #c0c0c0;
    --purple: #9d4edd;
    --pink: #ff4096;
    --orange: #ff7b00;
    --cyan: #00ffcc;
    --magenta: #ff00ff;
    --lime: #00ff00;
}

body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: hidden;
    overflow-y: auto;
    color: var(--text);
    padding: 10px;
    -webkit-overflow-scrolling: touch;
}

/* Premium Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    padding: 20px;
    overflow: hidden;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 500px;
    padding: 0 20px;
}

.loading-logo-container {
    width: min(180px, 40vw);
    height: min(180px, 40vw);
    margin-bottom: min(30px, 6vw);
    position: relative;
    animation: logoFloat 3s ease-in-out infinite;
}

.loading-logo {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 4px solid transparent;
    box-shadow: 
        0 0 40px var(--accent-glow),
        0 0 80px rgba(0, 212, 255, 0.4),
        0 0 120px rgba(157, 78, 221, 0.3);
    overflow: hidden;
    padding: 12%;
    position: relative;
}

.loading-logo::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        var(--accent),
        var(--purple),
        var(--pink),
        var(--orange),
        var(--gold),
        var(--cyan),
        var(--magenta),
        var(--lime),
        var(--accent)
    );
    background-size: 400% 400%;
    animation: gradientRotate 2s linear infinite, glowPulse 3s ease-in-out infinite;
    z-index: -1;
    filter: blur(10px);
}

.loading-logo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    border-radius: 50%;
    z-index: -1;
}

.loading-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    position: relative;
    filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.3));
}

@keyframes logoFloat {
    0%, 100% { 
        transform: translateY(0px) scale(1) rotate(0deg); 
    }
    25% { 
        transform: translateY(-12px) scale(1.05) rotate(2deg); 
    }
    50% { 
        transform: translateY(-6px) scale(1.08) rotate(-1deg); 
    }
    75% { 
        transform: translateY(-10px) scale(1.03) rotate(1deg); 
    }
}

@keyframes gradientRotate {
    0% { 
        background-position: 0% 50%;
        transform: rotate(0deg);
    }
    100% { 
        background-position: 100% 50%;
        transform: rotate(360deg);
    }
}

@keyframes glowPulse {
    0%, 100% { 
        opacity: 0.8;
        filter: blur(10px) brightness(1);
    }
    50% { 
        opacity: 1;
        filter: blur(15px) brightness(1.2);
    }
}

.loading-text {
    font-size: clamp(24px, 7vw, 36px);
    font-weight: 900;
    margin-bottom: min(15px, 4vw);
    text-align: center;
    background: linear-gradient(
        135deg,
        var(--gold) 0%,
        var(--accent) 25%,
        var(--purple) 50%,
        var(--pink) 75%,
        var(--orange) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 300% 300%;
    animation: textGradient 3s ease infinite, textGlow 2s ease-in-out infinite alternate;
    text-shadow: 
        0 0 30px rgba(0, 212, 255, 0.5),
        0 0 60px rgba(157, 78, 221, 0.3);
    letter-spacing: 1.5px;
    line-height: 1.2;
}

@keyframes textGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes textGlow {
    0% { 
        text-shadow: 
            0 0 30px rgba(0, 212, 255, 0.5),
            0 0 60px rgba(157, 78, 221, 0.3);
    }
    100% { 
        text-shadow: 
            0 0 40px rgba(0, 212, 255, 0.8),
            0 0 80px rgba(157, 78, 221, 0.5),
            0 0 120px rgba(255, 64, 150, 0.3);
    }
}

.loading-subtext {
    color: var(--text-muted);
    margin-bottom: min(30px, 8vw);
    text-align: center;
    font-size: clamp(14px, 3.5vw, 18px);
    max-width: min(350px, 85vw);
    line-height: 1.5;
    font-weight: 300;
    letter-spacing: 0.8px;
}

.loading-progress-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: min(15px, 4vw);
    width: 100%;
    max-width: min(450px, 90vw);
}

.loading-bar-container {
    width: 100%;
    height: clamp(6px, 1.5vw, 10px);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 
        inset 0 0 20px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(0, 212, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.loading-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(
        90deg,
        var(--accent) 0%,
        var(--purple) 25%,
        var(--pink) 50%,
        var(--orange) 75%,
        var(--gold) 100%
    );
    border-radius: 10px;
    transition: width 0.4s cubic-bezier(0.65, 0, 0.35, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 0 30px rgba(0, 212, 255, 0.6),
        0 0 60px rgba(157, 78, 221, 0.4);
}

.loading-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.8),
        rgba(255, 255, 255, 0.6),
        transparent
    );
    animation: shimmer 1.5s infinite;
    transform: skewX(-20deg);
}

.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: lightSweep 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes lightSweep {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.loading-stats {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
}

.loading-percentage {
    color: var(--accent);
    font-size: clamp(16px, 4.5vw, 20px);
    font-weight: 800;
    text-shadow: 
        0 0 15px rgba(0, 212, 255, 0.8),
        0 0 30px rgba(157, 78, 221, 0.5);
    background: linear-gradient(135deg, var(--accent), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.loading-status {
    color: var(--text-muted);
    font-size: clamp(12px, 3vw, 14px);
    font-weight: 500;
    letter-spacing: 0.8px;
}

/* Premium Particle System */
.loading-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    border-radius: 50%;
    animation: particleFloat 8s infinite linear;
    opacity: 0;
    filter: blur(1px);
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
        transform: translateY(90vh) rotate(90deg) scale(1);
    }
    90% {
        opacity: 0.8;
        transform: translateY(10vh) rotate(360deg) scale(1);
    }
    100% {
        transform: translateY(-100px) rotate(720deg) scale(0);
        opacity: 0;
    }
}

/* Premium Neon Light System */
.premium-neon-lights {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.neon-light {
    position: absolute;
    background: linear-gradient(
        90deg,
        transparent,
        var(--accent),
        var(--purple),
        var(--pink),
        var(--orange),
        var(--gold),
        var(--cyan),
        transparent
    );
    box-shadow: 
        0 0 20px var(--accent-glow),
        0 0 40px rgba(157, 78, 221, 0.6),
        0 0 60px rgba(255, 64, 150, 0.4);
    animation: neonSlide 6s linear infinite;
    z-index: 1;
    filter: blur(1px);
}

.neon-light.horizontal {
    width: 100%;
    height: 3px;
    top: 0;
    left: -100%;
}

.neon-light.vertical {
    width: 3px;
    height: 100%;
    top: -100%;
    left: 0;
}

.neon-light.diagonal {
    width: 200%;
    height: 3px;
    transform: rotate(45deg);
    top: -100%;
    left: -100%;
}

.neon-light.diagonal-2 {
    width: 200%;
    height: 3px;
    transform: rotate(-45deg);
    top: -100%;
    left: -100%;
}

.side-running-light {
    position: absolute;
    width: 4px;
    height: 80px;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--accent),
        var(--purple),
        var(--pink),
        transparent
    );
    box-shadow: 
        0 0 15px var(--accent-glow),
        0 0 30px rgba(157, 78, 221, 0.5);
    animation: sideRun 3s ease-in-out infinite;
    z-index: 1;
    filter: blur(0.5px);
}

.side-running-light.left {
    left: 10%;
    top: -80px;
}

.side-running-light.right {
    right: 10%;
    top: -80px;
}

.side-running-light.center-left {
    left: 25%;
    top: -80px;
    animation-delay: 0.5s;
}

.side-running-light.center-right {
    right: 25%;
    top: -80px;
    animation-delay: 0.5s;
}

.side-running-light.far-left {
    left: 5%;
    top: -80px;
    animation-delay: 1s;
}

.side-running-light.far-right {
    right: 5%;
    top: -80px;
    animation-delay: 1s;
}

@keyframes sideRun {
    0% {
        transform: translateY(-100px);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

@keyframes neonSlide {
    0% { 
        transform: translateX(-100%) translateY(-100%);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% { 
        transform: translateX(100%) translateY(100%);
        opacity: 0;
    }
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.1;
    animation: floatElement 20s infinite linear;
    z-index: 0;
}

@keyframes floatElement {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(100px, 100px) rotate(90deg);
    }
    50% {
        transform: translate(200px, 0) rotate(180deg);
    }
    75% {
        transform: translate(100px, -100px) rotate(270deg);
    }
    100% {
        transform: translate(0, 0) rotate(360deg);
    }
}

/* Container Utama */
.container {
    position: relative;
    width: 100%;
    max-width: min(450px, 95vw);
    padding: min(20px, 4vw);
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    margin: 20px auto;
}

.container.show {
    opacity: 1;
    transform: translateY(0);
}

.auth-card {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-radius: clamp(16px, 4vw, 20px);
    border: 1px solid rgba(0, 212, 255, 0.3);
    padding: clamp(30px, 7vw, 50px) clamp(25px, 6vw, 40px);
    box-shadow: 
        0 0 40px rgba(0, 0, 0, 0.6),
        0 0 80px rgba(0, 212, 255, 0.2),
        inset 0 0 60px rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.5s ease;
    width: 100%;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--accent),
        var(--purple),
        var(--pink),
        var(--orange),
        var(--gold),
        transparent
    );
    animation: borderPulse 4s infinite;
    z-index: 1;
}

.auth-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.05),
        transparent
    );
    animation: cardShimmer 6s infinite;
    z-index: 0;
}

@keyframes borderPulse {
    0%, 100% { 
        opacity: 0.4;
        background-size: 200% 100%;
    }
    50% { 
        opacity: 1;
        background-size: 400% 100%;
    }
}

@keyframes cardShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Header Card Premium */
.card-header {
    text-align: center;
    margin-bottom: clamp(25px, 7vw, 35px);
    position: relative;
    z-index: 2;
}

.logo {
    width: min(90px, 22vw);
    height: min(90px, 22vw);
    margin: 0 auto clamp(12px, 4vw, 18px);
    background: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 3px solid var(--accent);
    box-shadow: 
        0 0 25px var(--accent-glow),
        0 0 50px rgba(0, 212, 255, 0.3);
    overflow: hidden;
    padding: clamp(8px, 2vw, 10px);
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: conic-gradient(
        var(--accent),
        var(--purple),
        var(--pink),
        var(--orange),
        var(--accent)
    );
    animation: logoBorderRotate 3s linear infinite;
    z-index: -1;
    opacity: 0.7;
}

@keyframes logoBorderRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 1;
}

.card-header h1 {
    font-size: clamp(24px, 7vw, 32px);
    font-weight: 800;
    margin-bottom: clamp(8px, 2.5vw, 12px);
    background: linear-gradient(135deg, var(--accent), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 
        0 0 20px rgba(0, 212, 255, 0.4),
        0 0 40px rgba(255, 215, 0, 0.2);
    line-height: 1.2;
    letter-spacing: 1px;
}

.card-header p {
    color: var(--text-muted);
    font-size: clamp(14px, 4vw, 16px);
    line-height: 1.5;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Form Container */
.form-container {
    position: relative;
    height: auto;
    overflow: hidden;
    z-index: 2;
}

.form {
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.forgot-password-form {
    transform: translateX(100%);
    position: absolute;
    top: 0;
    width: 100%;
}

.auth-card.forgot-mode .login-form {
    transform: translateX(-100%);
}

.auth-card.forgot-mode .forgot-password-form {
    transform: translateX(0);
}

/* Input Groups Premium */
.input-group {
    position: relative;
    margin-bottom: clamp(20px, 6vw, 28px);
}

.input-group i {
    position: absolute;
    left: clamp(15px, 4vw, 18px);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: clamp(16px, 4.5vw, 18px);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    z-index: 2;
}

.input-group input, .input-group select {
    width: 100%;
    padding: clamp(14px, 4vw, 16px) clamp(14px, 4vw, 16px) clamp(14px, 4vw, 16px) clamp(50px, 13vw, 55px);
    background: rgba(26, 35, 50, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: clamp(8px, 2.5vw, 12px);
    color: var(--text);
    font-size: clamp(14px, 4vw, 16px);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    outline: none;
    position: relative;
    z-index: 1;
    min-height: clamp(48px, 13vw, 55px);
    backdrop-filter: blur(10px);
}

.input-group input::placeholder, .input-group select option {
    color: var(--text-muted);
    font-size: clamp(14px, 4vw, 16px);
}

.input-group input:focus, .input-group select:focus {
    background: rgba(26, 35, 50, 0.95);
    border-color: var(--accent);
    box-shadow: 
        0 0 0 3px rgba(0, 212, 255, 0.3),
        0 0 20px rgba(0, 212, 255, 0.2),
        inset 0 0 10px rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.input-group input:focus + i, .input-group select:focus + i {
    color: var(--accent);
    transform: translateY(-50%) scale(1.2);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* Password Strength Premium */
.password-strength {
    margin-top: 8px;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
    position: relative;
}

.strength-bar {
    height: 100%;
    width: 0%;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}

.strength-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: strengthShimmer 2s infinite;
}

.strength-weak { 
    background: linear-gradient(90deg, var(--error), #ff6b6b);
    width: 33%;
}
.strength-medium { 
    background: linear-gradient(90deg, var(--orange), #ffa726);
    width: 66%;
}
.strength-strong { 
    background: linear-gradient(90deg, var(--success), #00e676);
    width: 100%;
}

.strength-text {
    font-size: clamp(11px, 3vw, 12px);
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 500;
}

@keyframes strengthShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Options */
.options {
    display: flex;
    flex-direction: column;
    gap: clamp(14px, 4vw, 18px);
    margin-bottom: clamp(20px, 6vw, 28px);
    font-size: clamp(13px, 3.5vw, 14px);
}

@media (min-width: 480px) {
    .options {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.remember {
    display: flex;
    align-items: center;
    gap: 10px;
}

.remember input {
    margin: 0;
    width: clamp(18px, 4.5vw, 20px);
    height: clamp(18px, 4.5vw, 20px);
    accent-color: var(--accent);
    cursor: pointer;
}

.remember label {
    color: var(--text);
    font-size: clamp(13px, 3.5vw, 14px);
    cursor: pointer;
    user-select: none;
}

.forgot-password-link {
    color: var(--accent);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: clamp(13px, 3.5vw, 14px);
    padding: 8px 0;
    position: relative;
}

.forgot-password-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.forgot-password-link:hover::after {
    width: 100%;
}

/* Demo Accounts */
.demo-accounts {
    margin-top: 25px;
    padding: 20px;
    background: rgba(26, 35, 50, 0.6);
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.demo-accounts h4 {
    color: var(--accent);
    margin-bottom: 12px;
    font-size: 14px;
    text-align: center;
}

.demo-accounts p {
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 6px;
    line-height: 1.4;
}

/* Premium Buttons */
.auth-btn {
    width: 100%;
    padding: clamp(14px, 4vw, 16px);
    background: linear-gradient(
        135deg,
        var(--accent) 0%,
        var(--accent-dark) 50%,
        var(--accent) 100%
    );
    border: none;
    border-radius: clamp(8px, 2.5vw, 12px);
    color: var(--primary);
    font-size: clamp(14px, 4vw, 16px);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    box-shadow: 
        0 6px 20px rgba(0, 212, 255, 0.4),
        0 0 30px rgba(0, 212, 255, 0.2);
    position: relative;
    overflow: hidden;
    min-height: clamp(48px, 13vw, 55px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    letter-spacing: 1px;
}

.auth-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        rgba(255, 255, 255, 0.6),
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transition: left 0.6s ease;
}

.auth-btn:hover::before {
    left: 100%;
}

.auth-btn:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 10px 30px rgba(0, 212, 255, 0.6),
        0 0 40px rgba(0, 212, 255, 0.3);
}

.auth-btn:active {
    transform: translateY(-1px);
}

/* Secondary Buttons Premium */
.secondary-btn {
    width: 100%;
    padding: clamp(12px, 3.5vw, 14px);
    background: transparent;
    border: 2px solid var(--accent);
    border-radius: clamp(8px, 2.5vw, 12px);
    color: var(--accent);
    font-size: clamp(14px, 4vw, 16px);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    margin-top: clamp(10px, 3vw, 12px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: clamp(44px, 12vw, 50px);
    position: relative;
    overflow: hidden;
}

.secondary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 212, 255, 0.1),
        transparent
    );
    transition: left 0.6s ease;
}

.secondary-btn:hover::before {
    left: 100%;
}

.secondary-btn:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

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

/* Premium Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    left: 20px;
    padding: clamp(14px, 4vw, 16px) clamp(18px, 5vw, 25px);
    background: rgba(10, 14, 23, 0.98);
    color: white;
    border-radius: clamp(8px, 2.5vw, 12px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(0, 212, 255, 0.3);
    transform: translateX(150%);
    transition: transform 0.6s cubic-bezier(0.68, -00.55, 0.27, 1.55);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 4px solid var(--accent);
    max-width: min(400px, calc(100vw - 40px));
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left-color: var(--success);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(0, 204, 136, 0.3);
}

.notification.error {
    border-left-color: var(--error);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(255, 51, 102, 0.3);
}

/* Mobile Optimizations */
@media (max-width: 380px) {
    .auth-card {
        padding: 25px 20px;
    }
    
    .card-header h1 {
        font-size: 22px;
    }
    
    .input-group input, .input-group select {
        padding-left: 45px;
    }
    
    .input-group i {
        left: 12px;
    }
}

/* Landscape Mobile */
@media (max-height: 600px) and (orientation: landscape) {
    body {
        align-items: flex-start;
        padding-top: 10px;
    }
    
    .container {
        padding: 10px;
        margin: 10px auto;
    }
    
    .auth-card {
        padding: 20px;
        max-height: 85vh;
    }
    
    .form-container {
        max-height: 55vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .card-header {
        margin-bottom: 15px;
    }
    
    .logo {
        width: 60px;
        height: 60px;
        margin-bottom: 10px;
    }
    
    .input-group {
        margin-bottom: 15px;
    }
    
    .loading-screen {
        padding: 10px;
    }
    
    .loading-logo-container {
        width: 100px;
        height: 100px;
        margin-bottom: 15px;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .auth-btn:hover,
    .secondary-btn:hover {
        transform: none;
    }
    
    .auth-btn:active,
    .secondary-btn:active {
        transform: scale(0.98);
    }
    
    .input-group input:focus,
    .input-group select:focus {
        transform: none;
    }
    
    /* Better touch targets */
    .input-group input, 
    .input-group select,
    .auth-btn,
    .secondary-btn {
        min-height: 50px;
    }
}

/* Desktop Optimizations */
@media (min-width: 1024px) {
    .container {
        max-width: 450px;
    }
    
    .auth-card {
        padding: 50px 40px;
    }
    
    .card-header h1 {
        font-size: 32px;
    }
    
    .card-header p {
        font-size: 16px;
    }
    
    .input-group input, .input-group select {
        font-size: 16px;
        padding-left: 55px;
    }
    
    .input-group i {
        font-size: 18px;
        left: 18px;
    }
    
    .auth-btn, .secondary-btn {
        font-size: 16px;
    }
}

/* Tablet Optimizations */
@media (min-width: 768px) and (max-width: 1023px) {
    .container {
        max-width: 500px;
    }
    
    .auth-card {
        padding: 40px 35px;
    }
}

/* Very Small Screens */
@media (max-width: 320px) {
    .auth-card {
        padding: 20px 15px;
    }
    
    .card-header h1 {
        font-size: 20px;
    }
    
    .card-header p {
        font-size: 13px;
    }
    
    .input-group {
        margin-bottom: 15px;
    }
    
    .input-group input, .input-group select {
        padding: 12px 12px 12px 40px;
        min-height: 45px;
    }
    
    .input-group i {
        left: 10px;
        font-size: 16px;
    }
    
    .auth-btn, .secondary-btn {
        min-height: 45px;
        padding: 12px;
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .auth-card {
        border-width: 0.5px;
    }
    
    .input-group input, .input-group select {
        border-width: 1px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Scrollbar Styling for Webkit Browsers */
.form-container::-webkit-scrollbar {
    width: 6px;
}

.form-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.form-container::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

.form-container::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dark);
}