/*
 * Email OTP Authentication — Frontend Styles
 * Version: 1.0 | Author: Akhilesh Maurya
 * Inherits theme fonts, and blends with site colour palette.
 * All rules scoped to .eoa-wrapper to prevent conflicts.
 */

/* ─────────────────────────────────────────────
   CSS Custom Properties (theme-aware fallbacks)
───────────────────────────────────────────────*/
.eoa-wrapper {
    /* Try WordPress theme globals first, then sane defaults */
    --eoa-primary:       var(--wp--preset--color--primary, #7a0c1ed9);
    --eoa-primary-dark:  var(--wp--preset--color--secondary, #3730a3);
    --eoa-primary-rgb:   79, 70, 229;
    --eoa-primary-light: rgba(79, 70, 229, .10);
    --eoa-bg:            var(--wp--preset--color--background, #ffffff);
    --eoa-surface:       #f8fafc;
    --eoa-border:        #e2e8f0;
    --eoa-text:          var(--wp--preset--color--foreground, #1e293b);
    --eoa-muted:         #64748b;
    --eoa-lighter:       #94a3b8;
    --eoa-error:         #ef4444;
    --eoa-error-bg:      #fef2f2;
    --eoa-error-border:  #fecaca;
    --eoa-success:       #22c55e;
    --eoa-success-bg:    #f0fdf4;
    --eoa-warn:          #f59e0b;
    --eoa-radius-sm:     8px;
    --eoa-radius:        14px;
    --eoa-radius-lg:     20px;
    --eoa-shadow:        0 4px 12px rgba(0,0,0,.07), 0 1px 3px rgba(0,0,0,.05);
    --eoa-shadow-focus:  0 0 0 3px rgba(var(--eoa-primary-rgb), .20);
    --eoa-transition:    .2s ease;
    --eoa-font:          inherit; /* takes the theme's body font */
}

/* ─────────────────────────────────────────────
   Wrapper / layout
───────────────────────────────────────────────*/
.eoa-wrapper {
    font-family: var(--eoa-font);
    font-size: 15px;
    line-height: 1.5;
    color: var(--eoa-text);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2.5rem 1rem 3rem;
    box-sizing: border-box;
    width: 100%;
    min-height: 200px;
}

/* ─────────────────────────────────────────────
   Card
───────────────────────────────────────────────*/
.eoa-card {
    background: var(--eoa-bg);
    border-radius: var(--eoa-radius-lg);
    box-shadow: var(--eoa-shadow);
    border: 1px solid var(--eoa-border);
    padding: 2.25rem 2.25rem 2rem;
    width: 100%;
    max-width: 440px;
    animation: eoa-fadeup .35s ease both;
}

@keyframes eoa-fadeup {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

.eoa-card--success {
    border-color: #bbf7d0;
    background: var(--eoa-success-bg);
}

/* ─────────────────────────────────────────────
   Branding
───────────────────────────────────────────────*/
.eoa-brand {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.eoa-brand img {
    max-height: 48px;
    width: auto;
}

.eoa-brand__name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--eoa-primary);
    letter-spacing: -.5px;
}

/* ─────────────────────────────────────────────
   Tabs
───────────────────────────────────────────────*/
.eoa-tabs {
    display: flex;
    position: relative;
    background: var(--eoa-surface);
    border: 1px solid var(--eoa-border);
    border-radius: var(--eoa-radius);
    padding: 4px;
    margin-bottom: 1.75rem;
    gap: 4px;
}

.eoa-tab {
    flex: 1;
    padding: .55rem 1rem;
    border: none;
    background: transparent;
    border-radius: calc(var(--eoa-radius) - 4px);
    font-size: .875rem;
    font-weight: 600;
    color: var(--eoa-muted);
    cursor: pointer;
    transition: color var(--eoa-transition), background var(--eoa-transition);
    position: relative;
    z-index: 1;
    font-family: inherit;
    white-space: nowrap;
}

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

.eoa-tab--active {
    background: var(--eoa-bg);
    color: var(--eoa-primary);
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

/* ─────────────────────────────────────────────
   Panel
───────────────────────────────────────────────*/
.eoa-panel {
    animation: eoa-fadein .25s ease both;
}
@keyframes eoa-fadein {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.eoa-sub {
    margin: 0 0 1.5rem;
    color: var(--eoa-muted);
    font-size: .9rem;
    line-height: 1.6;
}

/* ─────────────────────────────────────────────
   Form fields
───────────────────────────────────────────────*/
.eoa-field {
    margin-bottom: 1.1rem;
}

.eoa-label {
    display: block;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--eoa-text);
    margin-bottom: .375rem;
    letter-spacing: .01em;
}

.eoa-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.eoa-input-icon {
    position: absolute;
    left: .875rem;
    width: 16px;
    height: 16px;
    color: var(--eoa-lighter);
    pointer-events: none;
    flex-shrink: 0;
}

.eoa-input {
    width: 100%;
    padding: .7rem .875rem .7rem 2.5rem;
    border: 1.5px solid var(--eoa-border);
    border-radius: var(--eoa-radius-sm);
    background: var(--eoa-bg);
    color: var(--eoa-text);
    font-size: .9375rem;
    font-family: inherit;
    transition: border-color var(--eoa-transition), box-shadow var(--eoa-transition);
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
}

.eoa-input::placeholder { color: var(--eoa-lighter); }

.eoa-input:focus {
    border-color: var(--eoa-primary);
    box-shadow: var(--eoa-shadow-focus);
}

.eoa-input.eoa-input--error {
    border-color: var(--eoa-error);
    box-shadow: 0 0 0 3px rgba(239,68,68,.15);
}

/* Eye toggle */
.eoa-eye {
    position: absolute;
    right: .75rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--eoa-lighter);
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color var(--eoa-transition);
}
.eoa-eye:hover { color: var(--eoa-muted); }
.eoa-eye svg { width: 16px; height: 16px; }

/* ─────────────────────────────────────────────
   Password strength
───────────────────────────────────────────────*/
.eoa-strength {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: .4rem;
}

.eoa-strength__bar {
    flex: 1;
    height: 4px;
    background: var(--eoa-border);
    border-radius: 99px;
    overflow: hidden;
}

.eoa-strength__fill {
    height: 100%;
    width: 0;
    border-radius: 99px;
    transition: width .35s ease, background .35s ease;
    background: var(--eoa-error);
}

.eoa-strength__label {
    font-size: .75rem;
    font-weight: 600;
    color: var(--eoa-muted);
    min-width: 48px;
    text-align: right;
}

/* ─────────────────────────────────────────────
   Alert messages
───────────────────────────────────────────────*/
.eoa-alert {
    display: flex;
    align-items: flex-start;
    gap: .5rem;
    padding: .7rem .875rem;
    border-radius: var(--eoa-radius-sm);
    font-size: .875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    border-width: 1px;
    border-style: solid;
}

.eoa-alert--error {
    background: var(--eoa-error-bg);
    border-color: var(--eoa-error-border);
    color: #b91c1c;
}

.eoa-alert--success {
    background: var(--eoa-success-bg);
    border-color: #bbf7d0;
    color: #15803d;
}

.eoa-alert--info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1d4ed8;
}

/* ─────────────────────────────────────────────
   Buttons
───────────────────────────────────────────────*/
.eoa-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .75rem 1.5rem;
    border-radius: var(--eoa-radius-sm);
    font-size: .9375rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: background var(--eoa-transition), transform var(--eoa-transition), box-shadow var(--eoa-transition), opacity var(--eoa-transition);
    text-decoration: none;
    letter-spacing: .01em;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.eoa-btn--primary {
    background: var(--eoa-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(var(--eoa-primary-rgb), .35);
}

.eoa-btn--primary:hover {
    background: var(--eoa-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(var(--eoa-primary-rgb), .40);
    color: #fff;
    text-decoration: none;
}

.eoa-btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(var(--eoa-primary-rgb), .30);
}

.eoa-btn--full { width: 100%; margin-top: .75rem; }

.eoa-btn:disabled,
.eoa-btn.eoa-btn--loading {
    opacity: .65;
    cursor: not-allowed;
    pointer-events: none;
}

/* Spinner inside button */
.eoa-btn__spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: eoa-spin .7s linear infinite;
    display: none;
}

.eoa-btn--loading .eoa-btn__spinner { display: block; }
.eoa-btn--loading .eoa-btn__text    { opacity: .6; }

@keyframes eoa-spin {
    to { transform: rotate(360deg); }
}

/* Link-style button */
.eoa-link {
    background: none;
    border: none;
    color: var(--eoa-primary);
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    padding: 0;
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: text-decoration-color var(--eoa-transition), color var(--eoa-transition);
}

.eoa-link:hover {
    color: var(--eoa-primary-dark);
    text-decoration-color: var(--eoa-primary-dark);
}

.eoa-link:disabled {
    color: var(--eoa-lighter);
    cursor: not-allowed;
}

/* ─────────────────────────────────────────────
   OTP Step
───────────────────────────────────────────────*/
.eoa-otp-icon-wrap {
    width: 68px;
    height: 68px;
    background: var(--eoa-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--eoa-primary);
}

.eoa-otp-icon-wrap svg {
    width: 32px;
    height: 32px;
}

.eoa-heading {
    margin: 0 0 .5rem;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--eoa-text);
    letter-spacing: -.3px;
}

/* 6-digit OTP grid */
.eoa-otp-grid {
    display: flex;
    gap: .5rem;
    justify-content: center;
    margin: 1.5rem 0 1rem;
}

.eoa-otp-box {
    width: 48px;
    height: 56px;
    border: 2px solid var(--eoa-border);
    border-radius: var(--eoa-radius-sm);
    background: var(--eoa-bg);
    color: var(--eoa-text);
    text-align: center;
    font-size: 1.4rem;
    font-weight: 800;
    caret-color: var(--eoa-primary);
    font-family: 'Courier New', Courier, monospace;
    transition: border-color var(--eoa-transition), box-shadow var(--eoa-transition), transform var(--eoa-transition);
    outline: none;
    appearance: none;
    -moz-appearance: textfield;
    box-sizing: border-box;
}

.eoa-otp-box::-webkit-outer-spin-button,
.eoa-otp-box::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.eoa-otp-box:focus {
    border-color: var(--eoa-primary);
    box-shadow: var(--eoa-shadow-focus);
    transform: translateY(-2px);
}

.eoa-otp-box.eoa-otp-box--filled {
    border-color: var(--eoa-primary);
    background: var(--eoa-primary-light);
    color: var(--eoa-primary);
}

.eoa-otp-box.eoa-otp-box--error {
    border-color: var(--eoa-error);
    background: var(--eoa-error-bg);
    animation: eoa-shake .35s ease;
}

@keyframes eoa-shake {
    0%,100% { transform: translateX(0); }
    20%      { transform: translateX(-5px); }
    60%      { transform: translateX(5px); }
}

/* Countdown timer */
.eoa-countdown {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    background: var(--eoa-surface);
    border: 1px solid var(--eoa-border);
    border-radius: 99px;
    padding: .3rem .75rem;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--eoa-muted);
    margin: 0 0 1rem;
}

.eoa-countdown svg { width: 13px; height: 13px; }

.eoa-countdown.eoa-countdown--urgent {
    background: #fef2f2;
    border-color: var(--eoa-error-border);
    color: var(--eoa-error);
}

.eoa-otp-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    margin-top: 1rem;
    font-size: .875rem;
    flex-wrap: wrap;
}

.eoa-text-muted { color: var(--eoa-muted); }

.eoa-back-link {
    display: block;
    margin-top: .875rem;
    font-size: .875rem;
    color: var(--eoa-muted);
}
.eoa-back-link:hover { color: var(--eoa-primary); }

/* ─────────────────────────────────────────────
   Success card
───────────────────────────────────────────────*/
.eoa-success-ring {
    width: 72px;
    height: 72px;
    background: var(--eoa-success-bg);
    border: 3px solid var(--eoa-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--eoa-success);
    animation: eoa-pop .45s cubic-bezier(.34,1.56,.64,1) both;
}

.eoa-success-ring svg { width: 30px; height: 30px; }

@keyframes eoa-pop {
    from { opacity: 0; transform: scale(.4); }
    to   { opacity: 1; transform: scale(1); }
}

/* Animated redirect progress bar */
.eoa-progress-bar {
    height: 4px;
    background: #bbf7d0;
    border-radius: 99px;
    overflow: hidden;
    margin-top: 1.5rem;
}

.eoa-progress-fill {
    height: 100%;
    width: 0;
    background: var(--eoa-success);
    border-radius: 99px;
    animation: eoa-progress 2.8s ease forwards;
}

@keyframes eoa-progress {
    from { width: 0; }
    to   { width: 100%; }
}

/* ─────────────────────────────────────────────
   Already logged-in state
───────────────────────────────────────────────*/
.eoa-card--center .eoa-btn { margin: 1rem 0 0; }

/* ─────────────────────────────────────────────
   Responsive tweaks
───────────────────────────────────────────────*/
@media ( max-width: 480px ) {
    .eoa-card {
        padding: 1.5rem 1.25rem 1.375rem;
        border-radius: var(--eoa-radius);
    }

    .eoa-otp-box {
        width: 40px;
        height: 50px;
        font-size: 1.2rem;
    }

    .eoa-otp-grid { gap: .35rem; }
}

@media ( max-width: 360px ) {
    .eoa-otp-box {
        width: 36px;
        height: 46px;
        font-size: 1.1rem;
    }
}

/* ─────────────────────────────────────────────
   Dark-mode support (respects system preference)
───────────────────────────────────────────────*/
@media (prefers-color-scheme: dark) {
    .eoa-wrapper {
        --eoa-bg:      #1e293b;
        --eoa-surface: #0f172a;
        --eoa-border:  #334155;
        --eoa-text:    #f1f5f9;
        --eoa-muted:   #94a3b8;
        --eoa-lighter: #64748b;
    }

    .eoa-card {
        box-shadow: 0 4px 20px rgba(0,0,0,.35);
    }

    .eoa-input { background: #1e293b; color: #f1f5f9; }
    .eoa-otp-box { background: #1e293b; color: #f1f5f9; }

    .eoa-tab--active {
        background: #334155;
    }
}