/* ==========================
   GOOGLE RESET
========================== */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

html{
    scroll-behavior:smooth;
}

body{
    background:#f5f9ff;
    color:#333;
    line-height:1.6;
}

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

.navbar{
    width:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:18px 8%;
    background:#fff;
    box-shadow:0 5px 15px rgba(0,0,0,.08);
    position:sticky;
    top:0;
    z-index:1000;
}

.logo{
    font-size:28px;
    font-weight:700;
    color:#0a7cff;
}

.logo i{
    margin-right:8px;
}

.nav-links{
    display:flex;
    list-style:none;
    gap:30px;
}

.nav-links a{
    text-decoration:none;
    color:#333;
    font-weight:500;
    transition:.3s;
}

.nav-links a:hover{
    color:#0a7cff;
}

#themeBtn{
    width:45px;
    height:45px;
    border:none;
    border-radius:50%;
    background:#0a7cff;
    color:#fff;
    cursor:pointer;
    font-size:18px;
    transition:.3s;
}

#themeBtn:hover{
    transform:rotate(20deg);
}

/* ==========================
   HERO
========================== */

.hero{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:80px 8%;
    gap:60px;
}

.hero-text{
    flex:1;
}

.hero-text h1{
    font-size:52px;
    color:#0b3d91;
    margin-bottom:20px;
}

.hero-text p{
    font-size:18px;
    color:#666;
    margin-bottom:30px;
}

.btn{
    display:inline-block;
    padding:14px 35px;
    background:#0a7cff;
    color:#fff;
    border:none;
    border-radius:8px;
    cursor:pointer;
    text-decoration:none;
    transition:.3s;
    font-size:16px;
}

.btn:hover{
    background:#005fd1;
    transform:translateY(-3px);
}

.hero-image{
    flex:1;
}

.hero-image img{
    width:100%;
    border-radius:20px;
    box-shadow:0 10px 30px rgba(0,0,0,.15);
}

/* ==========================
   STATISTICS
========================== */

.stats{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px;
    padding:20px 8% 70px;
}

.card{
    background:#fff;
    border-radius:15px;
    padding:35px;
    text-align:center;
    box-shadow:0 8px 25px rgba(0,0,0,.08);
    transition:.3s;
}

.card:hover{
    transform:translateY(-8px);
}

.card h2{
    font-size:42px;
    color:#0a7cff;
}

.card p{
    margin-top:10px;
    color:#666;
}

/* ==========================
   SECTION TITLE
========================== */

.title{
    text-align:center;
    font-size:36px;
    margin:60px 0 40px;
    color:#0b3d91;
}

/* ==========================
   DOCTORS
========================== */

.doctor-container{
    width:85%;
    margin:auto;
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:30px;
}

.doctor-card{
    background:#fff;
    border-radius:15px;
    padding:35px;
    text-align:center;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
    transition:.3s;
}

.doctor-card:hover{
    transform:translateY(-10px);
}

.doctor-icon{
    font-size:70px;
    color:#0a7cff;
    margin-bottom:20px;
}

.doctor-card h3{
    margin-bottom:10px;
}

.doctor-card p{
    color:#777;
}

/* ==========================
   APPOINTMENT FORM
========================== */

#appointment{
    width:85%;
    margin:70px auto;
}

#appointmentForm{
    background:#fff;
    padding:40px;
    border-radius:18px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);

    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px;
}

#appointmentForm input,
#appointmentForm select,
#appointmentForm textarea{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:8px;
    outline:none;
    font-size:15px;
    transition:.3s;
}

#appointmentForm input:focus,
#appointmentForm select:focus,
#appointmentForm textarea:focus{
    border-color:#0a7cff;
    box-shadow:0 0 8px rgba(10,124,255,.2);
}

#appointmentForm textarea{
    grid-column:1/3;
    resize:none;
}

#appointmentForm .btn{
    grid-column:1/3;
    width:220px;
    justify-self:center;
}

/* ==========================
   RECORDS
========================== */

#records{
    width:90%;
    margin:80px auto;
}

#search{
    width:100%;
    padding:14px;
    margin-bottom:25px;
    border:1px solid #ddd;
    border-radius:8px;
    outline:none;
}

table{
    width:100%;
    border-collapse:collapse;
    background:#fff;
    border-radius:15px;
    overflow:hidden;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
}

thead{
    background:#0a7cff;
    color:#fff;
}

th,
td{
    padding:16px;
    text-align:center;
}

tbody tr:nth-child(even){
    background:#f7f9fc;
}

tbody tr:hover{
    background:#eef5ff;
}

.deleteBtn{
    background:#ff4d4d;
    color:#fff;
    border:none;
    padding:8px 14px;
    border-radius:6px;
    cursor:pointer;
}

.deleteBtn:hover{
    background:#d92f2f;
}

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

footer{
    margin-top:80px;
    background:#0b3d91;
    color:#fff;
    text-align:center;
    padding:25px;
}

/* ==========================
   DARK MODE
========================== */

body.dark{
    background:#121212;
    color:#fff;
}

body.dark .navbar,
body.dark .card,
body.dark .doctor-card,
body.dark #appointmentForm,
body.dark table{
    background:#1e1e1e;
    color:#fff;
}

body.dark .nav-links a{
    color:#fff;
}

body.dark .hero-text h1,
body.dark .title{
    color:#fff;
}

body.dark .hero-text p,
body.dark .doctor-card p,
body.dark .card p{
    color:#ccc;
}

body.dark input,
body.dark select,
body.dark textarea,
body.dark #search{
    background:#2b2b2b;
    color:#fff;
    border:1px solid #444;
}

body.dark tbody tr:nth-child(even){
    background:#242424;
}

body.dark tbody tr:hover{
    background:#303030;
}

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

@media(max-width:992px){

.hero{
    flex-direction:column;
    text-align:center;
}

.hero-text h1{
    font-size:40px;
}

.stats{
    grid-template-columns:1fr;
}

#appointmentForm{
    grid-template-columns:1fr;
}

#appointmentForm textarea,
#appointmentForm .btn{
    grid-column:auto;
}

.navbar{
    flex-direction:column;
    gap:15px;
}

.nav-links{
    flex-wrap:wrap;
    justify-content:center;
}

}

@media(max-width:768px){

.hero{
    padding:50px 5%;
}

.hero-text h1{
    font-size:32px;
}

.title{
    font-size:28px;
}

.logo{
    font-size:22px;
}

.doctor-container{
    width:95%;
}

#appointment{
    width:95%;
}

#records{
    width:95%;
    overflow-x:auto;
}

table{
    min-width:700px;
}

.btn{
    width:100%;
}

}

@media(max-width:500px){

.hero-text h1{
    font-size:28px;
}

.card{
    padding:25px;
}

.doctor-card{
    padding:25px;
}

#appointmentForm{
    padding:20px;
}

}
.pdfBtn{

background:#e53935;
color:#fff;

border:none;

padding:10px 15px;

border-radius:8px;

cursor:pointer;

font-size:18px;

transition:.3s;

}

.pdfBtn:hover{

background:#c62828;

transform:scale(1.08);

}

/* ==========================
   RECORDS CONTROLS (Search + Sort)
========================== */

.records-controls{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    margin-bottom:15px;
}

.records-controls #search{
    flex:1;
    min-width:220px;
}

.records-controls #sortSelect{
    min-width:190px;
}

/* ==========================
   STATUS BADGE / SELECT
========================== */

.status-select{
    border:none;
    border-radius:20px;
    padding:6px 12px;
    font-size:13px;
    font-weight:600;
    cursor:pointer;
    color:#fff;
    outline:none;
    appearance:none;
    -webkit-appearance:none;
    text-align:center;
}

.status-Pending{
    background:#ff9800;
}

.status-Confirmed{
    background:#0a7cff;
}

.status-Completed{
    background:#28a745;
}

.status-Cancelled{
    background:#ff4d4d;
}

/* ==========================
   DISABLED SELECT (Time)
========================== */

#time:disabled{
    background:#eee;
    cursor:not-allowed;
}

body.dark #time:disabled{
    background:#2a2a2a;
}

/* ==========================
   EDIT BUTTON
========================== */

.editBtn{
    background:#0a7cff;
    color:#fff;
    border:none;
    padding:8px 14px;
    border-radius:6px;
    cursor:pointer;
    transition:.3s;
}

.editBtn:hover{
    background:#005fd1;
    transform:scale(1.08);
}

/* ==========================
   INVALID INPUT
========================== */

#appointmentForm input.invalid,
#appointmentForm select.invalid{
    border-color:#ff4d4d;
    box-shadow:0 0 8px rgba(255,77,77,.25);
}

/* ==========================
   UPDATE MODE BUTTON
========================== */

.update-mode{
    background:#28a745 !important;
}

.update-mode:hover{
    background:#1e7e34 !important;
}

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

.modal-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.5);
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    visibility:hidden;
    transition:.25s;
    z-index:2000;
}

.modal-overlay.active{
    opacity:1;
    visibility:visible;
}

.modal-box{
    background:#fff;
    border-radius:16px;
    padding:40px 35px;
    width:90%;
    max-width:380px;
    text-align:center;
    box-shadow:0 15px 40px rgba(0,0,0,.2);
    transform:translateY(-20px);
    transition:.25s;
}

.modal-overlay.active .modal-box{
    transform:translateY(0);
}

.modal-icon{
    font-size:55px;
    margin-bottom:18px;
}

.modal-icon.success{
    color:#28a745;
}

.modal-icon.error{
    color:#ff4d4d;
}

.modal-icon.warning{
    color:#ff9800;
}

.modal-icon.info{
    color:#0a7cff;
}

.modal-box p{
    font-size:16px;
    color:#444;
    margin-bottom:25px;
    line-height:1.6;
}

.modal-actions{
    display:flex;
    gap:12px;
    justify-content:center;
    flex-wrap:wrap;
}

.modal-actions .btn{
    padding:10px 25px;
    font-size:15px;
}

.btn-secondary{
    background:#e0e0e0 !important;
    color:#333 !important;
}

.btn-secondary:hover{
    background:#c9c9c9 !important;
}

body.dark .modal-box{
    background:#1e1e1e;
    color:#fff;
}

body.dark .modal-box p{
    color:#ddd;
}
/* ==========================
   UTILITY
========================== */

.hidden{
    display:none !important;
}

/* ==========================
   LOGIN SCREEN
========================== */

.login-screen{
    position:fixed;
    inset:0;
    background:linear-gradient(135deg,#0a7cff,#0b3d91);
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:3000;
    padding:20px;
}

.login-box{
    background:#fff;
    border-radius:18px;
    padding:45px 40px;
    width:100%;
    max-width:400px;
    text-align:center;
    box-shadow:0 20px 50px rgba(0,0,0,.3);
}

.login-logo{
    font-size:28px;
    font-weight:700;
    color:#0a7cff;
    margin-bottom:8px;
}

.login-subtitle{
    color:#777;
    margin-bottom:25px;
}

.role-tabs{
    display:flex;
    border-radius:10px;
    overflow:hidden;
    border:1px solid #ddd;
    margin-bottom:25px;
}

.role-tab{
    flex:1;
    padding:12px;
    border:none;
    background:#f5f9ff;
    cursor:pointer;
    font-size:15px;
    font-weight:500;
    color:#555;
    transition:.25s;
}

.role-tab.active{
    background:#0a7cff;
    color:#fff;
}

.login-form{
    display:flex;
    flex-direction:column;
    gap:14px;
}

.login-form input{
    width:100%;
    padding:13px;
    border:1px solid #ddd;
    border-radius:8px;
    outline:none;
    font-size:15px;
}

.login-form input:focus{
    border-color:#0a7cff;
    box-shadow:0 0 8px rgba(10,124,255,.2);
}

.login-form .btn{
    width:100%;
    margin-top:6px;
}

.login-hint{
    font-size:13px;
    color:#999;
    margin-top:4px;
}

.login-error{
    color:#ff4d4d;
    font-size:14px;
    margin-top:15px;
    min-height:18px;
}

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

.nav-right{
    display:flex;
    align-items:center;
    gap:12px;
}

.user-badge{
    font-size:14px;
    font-weight:500;
    color:#0a7cff;
    background:#eaf3ff;
    padding:8px 14px;
    border-radius:20px;
}

#logoutBtn{
    width:45px;
    height:45px;
    border:none;
    border-radius:50%;
    background:#ff4d4d;
    color:#fff;
    cursor:pointer;
    font-size:16px;
    transition:.3s;
}

#logoutBtn:hover{
    background:#d92f2f;
    transform:scale(1.08);
}

body.dark .user-badge{
    background:#26344a;
    color:#8ec1ff;
}

/* ==========================
   REMINDER BANNER
========================== */

.reminder-banner{
    width:85%;
    margin:0 auto;
    margin-top:20px;
    background:#fff4e0;
    border:1px solid #ffcc80;
    color:#9a5b00;
    padding:16px 22px;
    border-radius:12px;
    display:flex;
    align-items:center;
    gap:12px;
    font-size:15px;
    animation:slideDown .4s ease;
}

.reminder-banner i{
    font-size:20px;
    color:#ff9800;
}

body.dark .reminder-banner{
    background:#3a2e14;
    border-color:#7a5b1e;
    color:#ffcf7a;
}

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

/* ==========================
   DOCTOR AVAILABILITY NOTE
========================== */

.doctor-days{
    font-size:13px;
    color:#0a7cff;
    margin-top:6px;
}

.doctor-availability-note{
    grid-column:1/3;
    font-size:14px;
    min-height:18px;
    color:#ff9800;
    font-weight:500;
}

@media(max-width:992px){
    .doctor-availability-note{
        grid-column:auto;
    }
}

/* ==========================
   BUTTON OUTLINE VARIANT
========================== */

.btn-outline{
    background:#fff;
    color:#0a7cff;
    border:2px solid #0a7cff;
    padding:12px 20px;
    font-size:14px;
}

.btn-outline:hover{
    background:#0a7cff;
    color:#fff;
    transform:translateY(-2px);
}

body.dark .btn-outline{
    background:#1e1e1e;
}

/* ==========================
   DASHBOARD / CHARTS
========================== */

#dashboard{
    width:85%;
    margin:70px auto;
}

.charts-container{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:30px;
}

.chart-box{
    background:#fff;
    border-radius:15px;
    padding:25px;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
    text-align:center;
}

.chart-box h3{
    margin-bottom:20px;
    color:#0b3d91;
    font-size:18px;
}

.chart-box canvas{
    max-height:280px;
}

body.dark .chart-box{
    background:#1e1e1e;
}

body.dark .chart-box h3{
    color:#fff;
}

@media(max-width:992px){
    .charts-container{
        grid-template-columns:1fr;
    }
}

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

.pagination{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:10px;
    margin-top:25px;
    flex-wrap:wrap;
}

.pagination button{
    border:1px solid #ddd;
    background:#fff;
    padding:9px 15px;
    border-radius:8px;
    cursor:pointer;
    font-size:14px;
    transition:.2s;
}

.pagination button:hover:not(:disabled){
    background:#0a7cff;
    color:#fff;
    border-color:#0a7cff;
}

.pagination button.active{
    background:#0a7cff;
    color:#fff;
    border-color:#0a7cff;
}

.pagination button:disabled{
    opacity:.4;
    cursor:not-allowed;
}

body.dark .pagination button{
    background:#1e1e1e;
    color:#fff;
    border-color:#444;
}