/* ================================================================
   LOGIN PAGE - Glassmorphism Redesign
   Design System: Inter, #38BDF8 brand, frosted glass, micro-interactions
   ================================================================ */

/* ── Custom Properties ── */
/* Duotone icon colors for login context */
.login-shell .fad {
    --fa-primary-color: #0EA5E9;
    --fa-secondary-color: #38BDF8;
    --fa-secondary-opacity: .55;
}

.login-shell .login-emoji .fad {
    --fa-primary-color: #0EA5E9;
    --fa-secondary-color: #7DD3FC;
    --fa-secondary-opacity: .6;
}

.login-shell .login-trust-item .fad {
    --fa-primary-color: #22C55E;
    --fa-secondary-color: #4ade80;
    --fa-secondary-opacity: .5;
}

.login-shell .login-btn .fad {
    --fa-primary-color: #0c2d48;
    --fa-secondary-color: rgba(12, 45, 72, .6);
}

.login-shell .login-error .fad {
    --fa-primary-color: #EF4444;
    --fa-secondary-color: #f87171;
    --fa-secondary-opacity: .5;
}

:root {
    --login-brand: #38BDF8;
    --login-brand-hover: #22A7E6;
    --login-brand-active: #0E93D2;
    --login-text-primary: #0F172A;
    --login-text-secondary: #334155;
    --login-text-tertiary: #64748B;
    --login-text-muted: #94A3B8;
    --login-green: #22C55E;
    --login-red: #EF4444;
    --login-radius-sm: 8px;
    --login-radius-md: 11px;
    --login-radius-lg: 14px;
    --login-radius-xl: 18px;
    --login-radius-2xl: 20px;
    --login-radius-full: 9999px;
    --login-speed-fast: 160ms;
    --login-speed-normal: 220ms;
    --login-speed-slow: 350ms;
    --login-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --login-ease: cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ================================================================
   KEYFRAMES
   ================================================================ */

/* Card entrance with spring overshoot */
@keyframes loginIn {
    0% {
        opacity: 0;
        transform: translateY(32px) scale(0.96);
        filter: blur(4px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* Emoji bounce with spring */
@keyframes loginEmojiBounce {
    0% {
        opacity: 0;
        transform: scale(0.4) translateY(14px) rotate(-8deg);
    }
    60% {
        opacity: 1;
        transform: scale(1.12) translateY(-4px) rotate(2deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0) rotate(0deg);
    }
}

/* Error shake with decay */
@keyframes loginShake {
    0%, 100% { transform: translateX(0); }
    15%      { transform: translateX(-8px); }
    30%      { transform: translateX(7px); }
    45%      { transform: translateX(-5px); }
    60%      { transform: translateX(4px); }
    75%      { transform: translateX(-2px); }
    90%      { transform: translateX(1px); }
}

/* Pulsing error dot */
@keyframes loginDotPulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 6px rgba(239, 68, 68, 0.4); }
    50%      { opacity: 0.5; transform: scale(0.75); box-shadow: 0 0 12px rgba(239, 68, 68, 0.6); }
}

/* Floating ambient orb animations */
@keyframes loginOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(40px, -30px) scale(1.08); }
    66%      { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes loginOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(-35px, 25px) scale(0.92); }
    66%      { transform: translate(25px, -15px) scale(1.06); }
}

@keyframes loginOrb3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(20px, 30px) scale(1.1); }
}

/* ================================================================
   BACKGROUND SHELL
   ================================================================ */
.login-shell {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #e8edf3;
    padding: 80px 20px 60px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Ambient floating blur orbs */
.login-shell::before,
.login-shell::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    will-change: transform;
}

/* Orb 1 - top right, brand color */
.login-shell::before {
    width: 500px;
    height: 500px;
    background: rgba(56, 189, 248, 0.15);
    filter: blur(100px);
    top: -10%;
    right: -8%;
    animation: loginOrb1 18s ease-in-out infinite;
}

/* Orb 2 - bottom left, violet */
.login-shell::after {
    width: 420px;
    height: 420px;
    background: rgba(167, 139, 250, 0.12);
    filter: blur(110px);
    bottom: -8%;
    left: -6%;
    animation: loginOrb2 22s ease-in-out infinite;
}

/* ================================================================
   VIDEO BACKGROUND
   ================================================================ */
.login-shell-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}

/* Heavy frosted glass overlay over the video */
.login-shell-video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(240, 248, 255, 0.55);
    backdrop-filter: blur(44px) saturate(1.6);
    -webkit-backdrop-filter: blur(44px) saturate(1.6);
    z-index: 0;
    pointer-events: none;
}

/* ================================================================
   CENTER CONTAINER
   ================================================================ */
.login-center {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 460px;
    animation: loginIn 0.7s var(--login-spring) both;
}

/* Third ambient orb behind the card */
.login-center::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(34, 197, 94, 0.08);
    filter: blur(90px);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: -1;
    animation: loginOrb3 16s ease-in-out infinite;
}

/* ================================================================
   HEADER TEXT
   ================================================================ */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-emoji {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
    animation: loginEmojiBounce 0.7s 0.35s var(--login-spring) both;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.08));
}

.login-title {
    color: var(--login-text-primary);
    font-family: 'Inter', sans-serif;
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.15;
    margin: 0 0 10px;
}

.login-title em {
    font-style: normal;
    color: var(--login-brand);
}

.login-subtitle {
    font-size: 0.95rem;
    color: var(--login-text-tertiary);
    line-height: 1.7;
    margin: 0;
    font-weight: 400;
}

/* ================================================================
   LOGIN CARD - Heavy Glassmorphism
   ================================================================ */
.login-card {
    position: relative;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(226, 232, 240, 0.5);
    border-radius: 24px;
    padding: 40px 36px;
    backdrop-filter: blur(48px) saturate(1.5);
    -webkit-backdrop-filter: blur(48px) saturate(1.5);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.7),
        inset 0 -1px 0 rgba(255, 255, 255, 0.1),
        0 0 0 1px rgba(0, 0, 0, 0.02),
        0 1px 2px rgba(0, 0, 0, 0.02),
        0 4px 8px rgba(0, 0, 0, 0.02),
        0 12px 28px rgba(0, 0, 0, 0.05),
        0 32px 64px rgba(0, 0, 0, 0.04);
    transition: box-shadow var(--login-speed-slow) var(--login-ease);
}

/* Top accent line - brand color */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 36px;
    right: 36px;
    height: 2px;
    background: var(--login-brand);
    border-radius: 0 0 2px 2px;
    opacity: 0.45;
    transition: opacity var(--login-speed-normal) ease;
}

.login-card:hover::before {
    opacity: 0.7;
}

/* ================================================================
   ERROR MESSAGE
   ================================================================ */
.login-error {
    background: rgba(254, 226, 226, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(239, 68, 68, 0.18);
    color: #dc2626;
    padding: 12px 16px;
    border-radius: var(--login-radius-lg);
    margin-bottom: 22px;
    font-size: 0.83rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: loginShake 0.5s var(--login-ease);
    position: relative;
}

/* Pulsing red dot */
.login-error::before {
    content: '';
    width: 7px;
    height: 7px;
    background: var(--login-red);
    border-radius: var(--login-radius-full);
    flex-shrink: 0;
    animation: loginDotPulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
}

.login-error i {
    font-size: 16px;
    color: var(--login-red);
    flex-shrink: 0;
}

/* ================================================================
   FORM FIELDS - Focus ring, animated accent line, subtle lift
   ================================================================ */
.login-field {
    margin-bottom: 18px;
    position: relative;
}

.login-field label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--login-text-tertiary);
    margin-bottom: 7px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    transition: color var(--login-speed-normal) var(--login-ease);
}

.login-field label i {
    font-size: 14px;
    opacity: 0.5;
    transition: opacity var(--login-speed-normal) var(--login-ease),
                transform var(--login-speed-normal) var(--login-spring);
}

/* Focus-within: highlight the label */
.login-field:focus-within label {
    color: var(--login-brand-hover);
}

.login-field:focus-within label i {
    opacity: 0.9;
    transform: scale(1.1);
}

/* Animated bottom accent line on focus */
.login-field::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--login-brand);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--login-speed-slow) var(--login-spring);
    pointer-events: none;
}

.login-field:focus-within::after {
    transform: scaleX(1);
}

.login-field input {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid rgba(0, 0, 0, 0.07);
    border-radius: var(--login-radius-lg);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    color: var(--login-text-primary);
    background: #fff;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
    transition:
        border-color var(--login-speed-normal) ease,
        background var(--login-speed-normal) ease,
        box-shadow var(--login-speed-normal) ease,
        transform var(--login-speed-fast) ease;
    outline: none;
    box-sizing: border-box;
}

.login-field input::placeholder {
    color: var(--login-text-muted);
    opacity: 0.7;
}

/* Focus: brand ring + subtle lift */
.login-field input:focus {
    border-color: var(--login-brand);
    background: rgba(255, 255, 255, 0.9);
    box-shadow:
        0 0 0 4px rgba(56, 189, 248, 0.12),
        0 2px 8px rgba(56, 189, 248, 0.06);
    transform: translateY(-1px);
}

/* Focus-visible for keyboard nav */
.login-field input:focus-visible {
    box-shadow:
        0 0 0 4px rgba(56, 189, 248, 0.18),
        0 2px 12px rgba(56, 189, 248, 0.10);
}

/* ================================================================
   SUBMIT BUTTON - Flat brand color, pill, no gradient
   ================================================================ */
.login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    font-weight: 700;
    font-size: 0.93rem;
    font-family: 'Inter', sans-serif;
    padding: 15px 28px;
    border-radius: var(--login-radius-full);
    border: none;
    cursor: pointer;
    background: var(--login-brand);
    color: #fff;
    box-shadow: 0 4px 18px rgba(56, 189, 248, 0.22);
    transition:
        transform var(--login-speed-fast) var(--login-spring),
        box-shadow var(--login-speed-normal) var(--login-ease),
        background var(--login-speed-fast) ease;
    margin-top: 10px;
    position: relative;
    overflow: hidden;
}

/* Hover: slightly darker, lift */
.login-btn:hover {
    background: var(--login-brand-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(56, 189, 248, 0.30);
}

/* Active: press down */
.login-btn:active {
    background: var(--login-brand-active);
    transform: translateY(0) scale(0.97);
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.18);
}

/* Focus-visible ring */
.login-btn:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 3px rgba(255, 255, 255, 0.8),
        0 0 0 6px rgba(56, 189, 248, 0.4),
        0 4px 18px rgba(56, 189, 248, 0.22);
}

.login-btn i {
    font-size: 18px;
    transition: transform var(--login-speed-normal) var(--login-spring);
}

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

/* ================================================================
   HELP TEXT
   ================================================================ */
.login-help {
    text-align: center;
    font-size: 0.83rem;
    color: var(--login-text-tertiary);
    margin: 26px 0 0;
}

.login-help a {
    color: var(--login-brand-hover);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--login-speed-fast) ease;
    position: relative;
}

/* Animated underline on hover */
.login-help a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 1.5px;
    background: var(--login-brand);
    transition: width var(--login-speed-slow) var(--login-spring);
    border-radius: 1px;
}

.login-help a:hover {
    color: var(--login-brand-active);
}

.login-help a:hover::after {
    width: 100%;
}

.login-help a:focus-visible {
    outline: 2px solid rgba(56, 189, 248, 0.4);
    outline-offset: 3px;
    border-radius: 2px;
}

/* ================================================================
   TRUST BADGES - Glass pills
   ================================================================ */
.login-trust {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 26px;
    flex-wrap: wrap;
}

.login-trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    color: var(--login-text-muted);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    padding: 6px 14px;
    border-radius: var(--login-radius-full);
    transition:
        background var(--login-speed-fast) ease,
        box-shadow var(--login-speed-fast) ease,
        border-color var(--login-speed-fast) ease,
        transform var(--login-speed-fast) var(--login-spring);
}

.login-trust-item:hover {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

.login-trust-item i {
    color: var(--login-green);
    font-size: 0.7rem;
    font-style: normal;
}

/* ================================================================
   GOOGLE BUTTON - Glass look with left accent line on hover
   ================================================================ */
.login-google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 13px 20px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1.5px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--login-radius-lg);
    color: var(--login-text-primary);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    transition:
        background var(--login-speed-normal) ease,
        border-color var(--login-speed-normal) ease,
        transform var(--login-speed-fast) var(--login-spring),
        box-shadow var(--login-speed-normal) ease;
}

/* Left accent line - Google colors */
.login-google-btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 3px;
    background: linear-gradient(180deg, #4285F4, #34A853, #FBBC05, #EA4335);
    border-radius: 0 3px 3px 0;
    opacity: 0;
    transform: scaleY(0);
    transform-origin: center;
    transition:
        opacity var(--login-speed-normal) ease,
        transform var(--login-speed-slow) var(--login-spring);
    z-index: 1;
}

.login-google-btn:hover::before {
    opacity: 1;
    transform: scaleY(1);
}

.login-google-btn:hover {
    border-color: rgba(0, 0, 0, 0.10);
    background: rgba(255, 255, 255, 0.85);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    color: var(--login-text-primary);
}

.login-google-btn:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.login-google-btn:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 3px rgba(255, 255, 255, 0.8),
        0 0 0 6px rgba(56, 189, 248, 0.3);
}

.login-google-btn svg,
.login-google-btn span {
    position: relative;
    z-index: 1;
}

.login-google-btn svg {
    flex-shrink: 0;
}

/* ================================================================
   DIVIDER - Thin line with centered text
   ================================================================ */
.login-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 22px 0;
    color: var(--login-text-muted);
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: lowercase;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 0, 0, 0.07) 20%,
        rgba(0, 0, 0, 0.07) 80%,
        transparent
    );
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 640px) {
    .login-shell {
        padding: 70px 18px 50px;
    }

    .login-card {
        padding: 32px 26px;
        border-radius: var(--login-radius-2xl);
    }

    .login-card::before {
        left: 22px;
        right: 22px;
    }

    .login-shell::before {
        width: 350px;
        height: 350px;
    }

    .login-shell::after {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 480px) {
    .login-shell {
        padding: 60px 14px 36px;
        min-height: 100vh;
        min-height: 100dvh;
    }

    .login-card {
        padding: 28px 20px;
        border-radius: var(--login-radius-xl);
        backdrop-filter: blur(36px) saturate(1.4);
        -webkit-backdrop-filter: blur(36px) saturate(1.4);
    }

    .login-card::before {
        left: 16px;
        right: 16px;
    }

    .login-title {
        font-size: 1.4rem;
    }

    .login-emoji {
        font-size: 38px;
    }

    .login-trust {
        gap: 8px;
    }

    .login-trust-item {
        padding: 5px 11px;
        font-size: 0.7rem;
    }

    .login-shell::before,
    .login-shell::after {
        width: 250px;
        height: 250px;
        filter: blur(80px);
    }
}

/* ================================================================
   REDUCED MOTION - Respect user preferences
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
    .login-center,
    .login-emoji {
        animation: none;
    }

    .login-error {
        animation: none;
    }

    .login-error::before {
        animation: none;
    }

    .login-shell::before,
    .login-shell::after,
    .login-center::before {
        animation: none;
    }

    .login-field input,
    .login-btn,
    .login-google-btn,
    .login-trust-item {
        transition-duration: 0ms;
    }

    .login-field::after {
        transition-duration: 0ms;
    }
}