/* ========================================
   Login Page - Premium Dark Glassmorphism
======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600;700;800&family=Sarabun:wght@300;400;500;600;700;800&family=Kanit:wght@300;400;500;600;700;800&display=swap');

:root {
    --login-primary: #ff6b00;
    --login-primary-glow: rgba(255,107,0,.4);
    --login-accent: #ffb703;
    --login-bg-dark: #0a0f16;
    --login-card-bg: rgba(20, 25, 35, 0.65);
    --login-card-border: rgba(255,107,0,.25);
    --login-text: #ffffff;
    --login-text-muted: #cbd5e1;
    --login-input-bg: rgba(255,255,255,.05);
    --login-input-border: rgba(255,255,255,.15);
    --login-input-focus: rgba(255,107,0,.6);
    --login-radius: 24px;
    --login-radius-sm: 12px;
    --font-thai: 'Prompt', 'Sarabun', 'Kanit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Page Background */
.login-page-v2 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--login-bg-dark);
    font-family: var(--font-thai);
    position: relative;
    overflow: hidden;
    padding: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animated Fast Delivery Paths */
.login-page-v2::before {
    content: '';
    position: absolute;
    inset: -100%;
    background-image:
        linear-gradient(rgba(255,107,0,.08) 2px, transparent 2px),
        linear-gradient(90deg, rgba(255,107,0,.08) 2px, transparent 2px);
    background-size: 80px 80px;
    transform: perspective(600px) rotateX(60deg) translateY(-100px) translateZ(-200px);
    animation: roadMove 3s linear infinite;
    pointer-events: none;
    z-index: 0;
    will-change: transform;
}

.login-page-v2::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, var(--login-primary), transparent 65%);
    filter: blur(80px);
    opacity: 0.3;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    animation: pulseGlow 4s ease-in-out infinite alternate;
    will-change: opacity, transform;
}

@keyframes roadMove {
    0% { transform: perspective(600px) rotateX(60deg) translateY(0) translateZ(-200px); }
    100% { transform: perspective(600px) rotateX(60deg) translateY(80px) translateZ(-200px); }
}

@keyframes pulseGlow {
    0% { opacity: 0.15; transform: translate(-50%, -50%) scale(0.9); }
    100% { opacity: 0.35; transform: translate(-50%, -50%) scale(1.1); }
}

/* Overlay to fade edges */
.login-grid-overlay {
    position: absolute; inset: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--login-bg-dark) 70%);
    pointer-events: none;
    z-index: 1;
}

/* Card */
.login-card-v2 {
    position: relative; z-index: 2;
    width: 100%; max-width: 440px;
    background: var(--login-card-bg);
    border: 1px solid var(--login-card-border);
    border-radius: var(--login-radius);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 2.5rem 2rem;
    box-shadow: 0 24px 48px rgba(0,0,0,.4);
    animation: cardIn .6s cubic-bezier(.22,1,.36,1) both;
    will-change: transform, opacity;
}
@keyframes cardIn {
    from { opacity: 0; transform: translateY(30px) scale(.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Logo */
.login-brand { text-align: center; margin-bottom: 2rem; }
.login-brand-icon {
    width: 80px; height: 80px; margin: 0 auto 1rem;
    border-radius: 22px;
    background: linear-gradient(135deg, var(--login-primary), var(--login-accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 2.5rem; color: #fff;
    box-shadow: 0 8px 32px var(--login-primary-glow);
    animation: iconPulse 2s ease-in-out infinite alternate;
}
@keyframes iconPulse {
    0% { transform: scale(1); box-shadow: 0 8px 24px var(--login-primary-glow); }
    100% { transform: scale(1.05); box-shadow: 0 12px 40px var(--login-primary-glow); }
}
.login-brand h1 {
    font-size: 1.5rem; font-weight: 700;
    color: var(--login-text); margin: 0;
}
.login-brand p {
    font-size: .85rem; color: var(--login-text-muted);
    margin: .25rem 0 0;
}

/* Tab Navigation */
.login-tabs-v2 {
    display: flex; gap: 0; 
    background: rgba(255,255,255,.04);
    border: 1px solid var(--login-input-border);
    border-radius: var(--login-radius-sm);
    padding: .35rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.login-tab-btn {
    flex: 1;
    padding: .65rem 1rem;
    background: none; border: none;
    color: var(--login-text-muted);
    font-size: .85rem; font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: .4rem;
    transition: color .3s;
    z-index: 1;
    position: relative;
    white-space: nowrap;
}

.login-tab-btn:hover {
    color: var(--login-text);
}

.login-tab-btn.active {
    color: #fff;
}

.login-tab-indicator {
    position: absolute;
    top: .35rem; left: 0;
    height: calc(100% - .7rem);
    background: linear-gradient(135deg, var(--login-primary), var(--login-accent));
    border-radius: calc(var(--login-radius-sm) - 2px);
    transition: all .4s cubic-bezier(.22,1,.36,1);
    z-index: 0;
    box-shadow: 0 2px 12px var(--login-primary-glow);
}

/* Form visibility */
.login-form-tab {
    display: none;
    opacity: 0;
    animation: fadeOut .2s ease-in-out forwards;
}

.login-form-tab.active {
    display: block;
    animation: fadeIn .3s ease-in-out .1s forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Form */
.login-form-v2 .form-group-v2 { margin-bottom: 1.5rem; }
.login-form-v2 .form-label-v2 {
    display: block; font-size: 1rem; font-weight: 600;
    color: #ffffff; margin-bottom: .6rem;
    letter-spacing: .02em;
}
.login-form-v2 .form-label-v2.required::after {
    content: ' *'; color: #ef4444; margin-left: 4px;
}
.input-wrapper-v2 {
    position: relative;
    display: flex; align-items: center;
}
.input-wrapper-v2 i {
    position: absolute; left: 10px;
    color: var(--login-text-muted); font-size: 1.1rem;
    transition: color .2s;
}
.input-wrapper-v2 input {
    width: 100%;
    padding: .85rem .85rem .85rem 3rem;
    padding-right: 3rem;
    background: var(--login-input-bg);
    border: 2px solid var(--login-input-border);
    border-radius: var(--login-radius-sm);
    color: var(--login-text);
    font-size: 1.05rem;
    font-weight: 500;
    font-family: inherit;
    outline: none;
    transition: all .3s ease;
}
.input-wrapper-v2 input::placeholder { color: rgba(255,255,255,.3); }
.input-wrapper-v2 input:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 3px var(--login-input-focus);
    background: rgba(255,255,255,.1);
}
.input-wrapper-v2 input:focus + i,
.input-wrapper-v2:focus-within i {
    color: var(--login-accent);
}

/* Password input wrapper - no left icon */
.input-wrapper-password {
    position: relative;
    display: flex;
    align-items: center;
}
.input-wrapper-password input {
    width: 100%;
    padding: .85rem 3.5rem .85rem 1rem;
    background: var(--login-input-bg);
    border: 2px solid var(--login-input-border);
    border-radius: var(--login-radius-sm);
    color: var(--login-text);
    font-size: 1.05rem;
    font-weight: 500;
    font-family: inherit;
    outline: none;
    transition: all .3s ease;
}
.input-wrapper-password input::placeholder {
    color: rgba(255,255,255,.3);
}
.input-wrapper-password input:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 3px var(--login-input-focus);
    background: rgba(255,255,255,.1);
}

/* Toggle password */
.toggle-pw {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.08);
    border: none;
    color: var(--login-text-muted);
    cursor: pointer;
    font-size: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: color .2s ease, background .2s ease, transform .2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}
.toggle-pw:hover {
    color: var(--login-accent);
    background: rgba(255,255,255,0.15);
    transform: translateY(-50%) scale(1.1);
}
.toggle-pw:active {
    transform: translateY(-50%) scale(0.95);
}
.toggle-pw i {
    pointer-events: none;
}

/* Options row */
.login-options-v2 {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem; font-size: .8rem;
}
.check-label-v2 {
    display: flex; align-items: center; gap: .4rem;
    color: var(--login-text-muted); cursor: pointer;
}
.check-label-v2 input[type=checkbox] {
    accent-color: var(--login-primary);
    width: 15px; height: 15px;
}
.forgot-link-v2 {
    color: var(--login-accent);
    text-decoration: none; font-weight: 500;
    transition: color .2s;
}
.forgot-link-v2:hover { color: #c4b5fd; }

/* Submit button */
.btn-login-v2 {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--login-primary), var(--login-accent));
    border: none; border-radius: var(--login-radius-sm);
    color: #fff; font-size: 1.1rem; font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: .5rem;
    transition: all .3s ease;
    box-shadow: 0 6px 24px var(--login-primary-glow);
    position: relative; overflow: hidden;
    letter-spacing: 0.5px;
}
.btn-login-v2:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--login-primary-glow);
}
.btn-login-v2:active { transform: translateY(0); }

/* Shimmer effect on button */
.btn-login-v2::after {
    content: '';
    position: absolute; top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.15), transparent);
    animation: shimmer 3s infinite;
}
@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Loading state */
.btn-login-v2.loading { pointer-events: none; opacity: .7; }
.btn-login-v2 .spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    display: none;
}
.btn-login-v2.loading .spinner { display: block; }
.btn-login-v2.loading .btn-text { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Error message */
.login-error-v2 {
    background: rgba(239,68,68,.12);
    border: 1px solid rgba(239,68,68,.3);
    border-radius: var(--login-radius-sm);
    padding: .75rem 1rem;
    color: #fca5a5; font-size: .8rem;
    margin-bottom: 1rem;
    display: none; align-items: center; gap: .5rem;
}
.login-error-v2.show { display: flex; }

/* Footer */
.login-footer-v2 {
    text-align: center; margin-top: 1.75rem;
    font-size: .75rem; color: var(--login-text-muted);
}
.login-footer-v2 a {
    color: var(--login-accent);
    text-decoration: none;
}
.login-footer-v2 a:hover { text-decoration: underline; }

/* Toast for login page */
.login-toast {
    position: fixed; top: 20px; right: 20px;
    z-index: 9999;
    padding: 1rem 1.5rem;
    border-radius: var(--login-radius-sm);
    font-size: .85rem; font-weight: 500;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0,0,0,.3);
    transform: translateX(120%);
    transition: transform .4s cubic-bezier(.22,1,.36,1);
}
.login-toast.show { transform: translateX(0); }
.login-toast.success { background: linear-gradient(135deg, #10b981, #059669); }
.login-toast.error { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* Responsive */
@media (max-width: 480px) {
    .login-card-v2 { padding: 2rem 1.25rem; }
    .login-brand-icon { width: 60px; height: 60px; font-size: 1.6rem; }
    .login-brand h1 { font-size: 1.25rem; }
    
    .login-tabs-v2 {
        padding: .3rem;
        margin-bottom: 1.25rem;
    }
    
    .login-tab-btn {
        font-size: .8rem;
        padding: .55rem .75rem;
        gap: .3rem;
    }
    
    .login-tab-btn i {
        font-size: .9rem;
    }
}