/* ============================================================
   NFInnovations Survey — Custom Stylesheet
   Brand: Deep Blue · Turquoise · White · Light Gray
   ============================================================ */

:root {
    --nfi-blue:          #1A3C6E;
    --nfi-blue-dark:     #112852;
    --nfi-blue-medium:   #2A5298;
    --nfi-turquoise:     #00B4C8;
    --nfi-turquoise-dk:  #008FA0;
    --nfi-turquoise-lt:  #D0F4F8;
    --nfi-white:         #FFFFFF;
    --nfi-bg:            #F4F7FA;
    --nfi-surface:       #FFFFFF;
    --nfi-border:        #DDE3EC;
    --nfi-text:          #1A2B3C;
    --nfi-text-muted:    #4A5568;
    --nfi-gray-100:      #F4F7FA;
    --nfi-gray-200:      #E8EDF4;
    --nfi-gray-400:      #8A9BB2;
    --nfi-success:       #10B981;
    --nfi-error:         #EF4444;
    --nfi-shadow-sm:     0 1px 3px rgba(26,60,110,.07), 0 1px 2px rgba(26,60,110,.05);
    --nfi-shadow:        0 4px 16px rgba(26,60,110,.10), 0 2px 6px rgba(26,60,110,.06);
    --nfi-shadow-lg:     0 10px 40px rgba(26,60,110,.13), 0 4px 12px rgba(26,60,110,.08);
    --nfi-radius:        12px;
    --nfi-radius-sm:     8px;
    --nfi-radius-lg:     16px;
    --nfi-transition:    all .2s ease;
}

/* ============================================================
   BASE
   ============================================================ */

*,
*::before,
*::after { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--nfi-bg);
    color: var(--nfi-text);
    font-size: .9625rem;
    line-height: 1.6;
}

a { color: var(--nfi-blue); transition: var(--nfi-transition); }
a:hover { color: var(--nfi-turquoise); }

.text-turquoise { color: var(--nfi-turquoise) !important; }
.text-nfi       { color: var(--nfi-blue) !important; }

/* ============================================================
   NAVBAR
   ============================================================ */

.nfi-navbar {
    background: linear-gradient(135deg, var(--nfi-blue-dark) 0%, var(--nfi-blue) 100%);
    box-shadow: 0 2px 12px rgba(26,60,110,.25);
    padding: .75rem 0;
}

.nfi-navbar .navbar-brand { letter-spacing: -.3px; }
.nfi-logo-icon { font-size: 1.4rem; }

/* ============================================================
   BUTTONS
   ============================================================ */

.btn-nfi {
    background: linear-gradient(135deg, var(--nfi-blue) 0%, var(--nfi-blue-medium) 100%);
    border: none;
    color: var(--nfi-white);
    font-weight: 600;
    border-radius: var(--nfi-radius-sm);
    padding: .55rem 1.4rem;
    transition: var(--nfi-transition);
    box-shadow: 0 2px 8px rgba(26,60,110,.25);
}
.btn-nfi:hover, .btn-nfi:focus {
    background: linear-gradient(135deg, var(--nfi-blue-medium) 0%, var(--nfi-blue) 100%);
    color: var(--nfi-white);
    box-shadow: 0 4px 14px rgba(26,60,110,.3);
    transform: translateY(-1px);
}

.btn-nfi-turquoise {
    background: linear-gradient(135deg, var(--nfi-turquoise) 0%, var(--nfi-turquoise-dk) 100%);
    border: none;
    color: var(--nfi-white);
    font-weight: 600;
    border-radius: var(--nfi-radius-sm);
    padding: .55rem 1.4rem;
    transition: var(--nfi-transition);
    box-shadow: 0 2px 8px rgba(0,180,200,.3);
}
.btn-nfi-turquoise:hover, .btn-nfi-turquoise:focus {
    background: linear-gradient(135deg, var(--nfi-turquoise-dk) 0%, #006E7A 100%);
    color: var(--nfi-white);
    box-shadow: 0 4px 14px rgba(0,143,160,.4);
    transform: translateY(-1px);
}

.btn-nav {
    min-width: 130px;
    padding: .6rem 1.6rem;
    border-radius: var(--nfi-radius-sm);
}

/* ============================================================
   SURVEY PAGE
   ============================================================ */

.survey-page { background-color: var(--nfi-bg); }

.nfi-badge-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--nfi-blue) 0%, var(--nfi-turquoise) 100%);
    border-radius: 50%;
    font-size: 1.75rem;
    color: white;
    box-shadow: var(--nfi-shadow);
}

.survey-heading {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--nfi-blue);
    line-height: 1.25;
    letter-spacing: -.4px;
}

.survey-intro {
    font-size: .9375rem;
    line-height: 1.65;
    max-width: 560px;
    margin: .75rem auto 0;
}

/* Progress */
.survey-progress { background: var(--nfi-surface); border-radius: var(--nfi-radius); padding: 1rem 1.25rem; box-shadow: var(--nfi-shadow-sm); }
.nfi-progress-bar { background: linear-gradient(90deg, var(--nfi-blue) 0%, var(--nfi-turquoise) 100%); border-radius: 999px; transition: width .4s cubic-bezier(.4,0,.2,1); }
.progress { border-radius: 999px; background: var(--nfi-gray-200); }

.step-dots { flex-wrap: wrap; }
.step-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--nfi-gray-200);
    cursor: pointer;
    transition: var(--nfi-transition);
    border: 2px solid var(--nfi-border);
}
.step-dot.active  { background: var(--nfi-blue); border-color: var(--nfi-blue); }
.step-dot.done    { background: var(--nfi-turquoise); border-color: var(--nfi-turquoise); }

/* Section */
.survey-section {
    background: var(--nfi-surface);
    border-radius: var(--nfi-radius-lg);
    padding: 2rem 2.25rem;
    box-shadow: var(--nfi-shadow);
    border: 1px solid var(--nfi-border);
}

@media (max-width: 576px) { .survey-section { padding: 1.25rem 1rem; } }

.section-header {
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--nfi-gray-200);
    margin-bottom: 1.5rem !important;
}

.section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--nfi-blue);
    margin-bottom: .25rem;
}

.section-desc { font-size: .875rem; }

/* Question block */
.question-block {
    padding: 1.1rem 1.25rem;
    border-radius: var(--nfi-radius-sm);
    background: var(--nfi-gray-100);
    border: 1px solid transparent;
    transition: var(--nfi-transition);
}
.question-block:focus-within {
    border-color: var(--nfi-turquoise);
    background: #f0fbfc;
    box-shadow: 0 0 0 3px rgba(0,180,200,.08);
}
.question-block.has-error {
    border-color: var(--nfi-error);
    background: #fff5f5;
}

.question-label {
    font-weight: 600;
    font-size: .9375rem;
    color: var(--nfi-text);
    display: block;
    margin-bottom: .5rem;
}

.required-badge {
    color: var(--nfi-error);
    font-weight: 700;
    margin-left: .25rem;
    font-size: 1rem;
}
.optional-badge {
    font-size: .725rem;
    font-weight: 500;
    color: var(--nfi-gray-400);
    background: var(--nfi-gray-200);
    border-radius: 4px;
    padding: 1px 6px;
    margin-left: .4rem;
    vertical-align: middle;
}

.question-desc { margin-top: -.35rem; }

.question-error {
    display: none;
    color: var(--nfi-error);
    font-size: .8125rem;
    margin-top: .35rem;
    font-weight: 500;
}
.question-error.visible { display: block; }

/* Inputs */
.nfi-input {
    border: 1.5px solid var(--nfi-border);
    border-radius: var(--nfi-radius-sm);
    padding: .55rem .85rem;
    font-size: .9375rem;
    background: var(--nfi-white);
    color: var(--nfi-text);
    transition: var(--nfi-transition);
    width: 100%;
}
.nfi-input:focus {
    border-color: var(--nfi-turquoise);
    box-shadow: 0 0 0 3px rgba(0,180,200,.15);
    outline: none;
    background: var(--nfi-white);
}
.nfi-input.is-invalid { border-color: var(--nfi-error); }

/* Radio / Checkbox */
.nfi-check { padding: .45rem .5rem; border-radius: 6px; transition: var(--nfi-transition); cursor: pointer; }
.nfi-check:hover { background: var(--nfi-gray-200); }
.nfi-check .form-check-input:checked { background-color: var(--nfi-blue); border-color: var(--nfi-blue); }
.nfi-check .form-check-input:focus { box-shadow: 0 0 0 3px rgba(26,60,110,.15); }
.nfi-check .form-check-label { cursor: pointer; font-size: .9125rem; padding-left: .2rem; }

/* Scale */
.scale-btn {
    cursor: pointer;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
}
.scale-btn input { position: absolute; opacity: 0; pointer-events: none; }
.scale-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px; height: 42px;
    border-radius: var(--nfi-radius-sm);
    border: 2px solid var(--nfi-border);
    font-weight: 600;
    font-size: .9rem;
    background: var(--nfi-white);
    transition: var(--nfi-transition);
}
.scale-btn:hover span { border-color: var(--nfi-blue); color: var(--nfi-blue); background: #EEF2FB; }
.scale-btn input:checked + span { background: var(--nfi-blue); border-color: var(--nfi-blue); color: white; }

/* Char counter */
.char-counter { font-size: .8rem; }

/* ============================================================
   THANKS PAGE
   ============================================================ */

.thanks-page { background: linear-gradient(160deg, var(--nfi-bg) 0%, #E8F4F7 100%); }

.thanks-card {
    background: var(--nfi-surface);
    border-radius: var(--nfi-radius-lg);
    padding: 3rem 2.5rem;
    box-shadow: var(--nfi-shadow-lg);
    border: 1px solid var(--nfi-border);
}
@media (max-width: 576px) { .thanks-card { padding: 2rem 1.25rem; } }

.thanks-icon { font-size: 4rem; color: var(--nfi-success); line-height: 1; }
.thanks-heading { font-size: 2rem; font-weight: 700; color: var(--nfi-blue); }
.thanks-message { font-size: 1rem; line-height: 1.65; }

.thanks-info-box {
    background: var(--nfi-gray-100);
    border-radius: var(--nfi-radius-sm);
    padding: 1.25rem 1rem;
    border: 1px solid var(--nfi-border);
}
.thanks-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    font-size: 1.25rem;
}

/* ============================================================
   MODAL
   ============================================================ */

.nfi-modal {
    border-radius: var(--nfi-radius-lg);
    border: none;
    box-shadow: var(--nfi-shadow-lg);
}
.nfi-modal .modal-header { padding: 1.5rem 1.5rem .75rem; }
.nfi-modal .modal-body   { padding: .75rem 1.5rem; }
.nfi-modal .modal-footer { padding: .75rem 1.5rem 1.5rem; }

/* ============================================================
   FOOTER
   ============================================================ */

.nfi-footer {
    background: var(--nfi-surface);
    border-top: 1px solid var(--nfi-border);
    margin-top: 2rem;
}

/* ============================================================
   ADMIN LOGIN
   ============================================================ */

.admin-login-page {
    background: linear-gradient(160deg, var(--nfi-blue-dark) 0%, var(--nfi-blue) 55%, #1A5070 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.login-card {
    background: var(--nfi-white);
    border-radius: var(--nfi-radius-lg);
    padding: 2.5rem 2rem;
    box-shadow: var(--nfi-shadow-lg);
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.login-logo {
    font-size: 2rem;
    color: var(--nfi-white);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--nfi-blue) 0%, var(--nfi-turquoise) 100%);
    border-radius: 14px;
    margin: 0 auto 1.25rem;
    box-shadow: 0 4px 12px rgba(0,180,200,.4);
}

/* ============================================================
   ADMIN DASHBOARD
   ============================================================ */

.admin-page {
    background: var(--nfi-bg);
    min-height: 100vh;
}

.admin-navbar {
    background: linear-gradient(135deg, var(--nfi-blue-dark) 0%, var(--nfi-blue) 100%);
    box-shadow: 0 2px 12px rgba(26,60,110,.25);
}

.stat-card {
    background: var(--nfi-surface);
    border-radius: var(--nfi-radius);
    padding: 1.4rem 1.5rem;
    box-shadow: var(--nfi-shadow-sm);
    border: 1px solid var(--nfi-border);
    transition: var(--nfi-transition);
}
.stat-card:hover { box-shadow: var(--nfi-shadow); transform: translateY(-1px); }

.stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--nfi-blue);
}

.stat-label { font-size: .8125rem; color: var(--nfi-text-muted); font-weight: 500; margin-top: .35rem; }

.stat-icon {
    font-size: 1.75rem;
    opacity: .25;
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    color: var(--nfi-blue);
}

.admin-card {
    background: var(--nfi-surface);
    border-radius: var(--nfi-radius);
    box-shadow: var(--nfi-shadow-sm);
    border: 1px solid var(--nfi-border);
    overflow: hidden;
}
.admin-card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--nfi-border);
    background: var(--nfi-gray-100);
    font-weight: 600;
    color: var(--nfi-blue);
}

.admin-table { font-size: .875rem; margin: 0; }
.admin-table th {
    background: var(--nfi-gray-100);
    color: var(--nfi-text-muted);
    font-weight: 600;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 2px solid var(--nfi-border);
    padding: .75rem 1rem;
    white-space: nowrap;
}
.admin-table td { padding: .7rem 1rem; vertical-align: middle; border-bottom: 1px solid var(--nfi-gray-200); }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--nfi-gray-100); }

.badge-country {
    background: var(--nfi-turquoise-lt);
    color: var(--nfi-turquoise-dk);
    font-weight: 600;
    font-size: .75rem;
    border-radius: 6px;
    padding: 2px 8px;
}

.filter-form { background: var(--nfi-surface); border-radius: var(--nfi-radius); padding: 1.25rem 1.5rem; box-shadow: var(--nfi-shadow-sm); border: 1px solid var(--nfi-border); }

.bar-chart-bar {
    height: 20px;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--nfi-blue) 0%, var(--nfi-turquoise) 100%);
    transition: width .4s ease;
    min-width: 4px;
}

/* ============================================================
   PAGINATION
   ============================================================ */

.nfi-pagination .page-link {
    color: var(--nfi-blue);
    border-color: var(--nfi-border);
    border-radius: 6px !important;
    margin: 0 2px;
    font-size: .875rem;
}
.nfi-pagination .page-item.active .page-link {
    background: var(--nfi-blue);
    border-color: var(--nfi-blue);
}
.nfi-pagination .page-link:hover { background: var(--nfi-gray-100); color: var(--nfi-blue); }

/* ============================================================
   ALERTS
   ============================================================ */

.nfi-alert {
    border-radius: var(--nfi-radius-sm);
    border-left: 4px solid;
    padding: .85rem 1.1rem;
    font-size: .9rem;
}
.nfi-alert-danger  { border-left-color: var(--nfi-error); background: #FFF5F5; color: #C53030; }
.nfi-alert-success { border-left-color: var(--nfi-success); background: #F0FFF4; color: #276749; }
.nfi-alert-info    { border-left-color: var(--nfi-turquoise); background: #EBF9FC; color: #2C7A7B; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .survey-heading { font-size: 1.4rem; }
    .thanks-card    { padding: 2rem 1.25rem; }
    .login-card     { padding: 2rem 1.25rem; }
    .admin-card-header { padding: .75rem 1rem; }
    .admin-table td { padding: .55rem .75rem; }
}

@media (max-width: 576px) {
    .btn-nav { min-width: 100px; padding: .55rem 1rem; }
    .scale-btn span { width: 36px; height: 36px; font-size: .85rem; }
}