/* Engineeringa2z Certificate Verification System - Exact Blogger Design */
/* ===== RESET & BASE ===== */
.enga2z-certificate-container * { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
}

.enga2z-certificate-container,
.enga2z-certificate-container html,
.enga2z-certificate-container body {
    width: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

.enga2z-certificate-container { 
    background: #f5f7fa !important;
    color: #1a365d; 
    min-height: 100vh;
    padding: 10px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    max-width: 1000px; 
    width: 100%;
    margin: 0 auto; 
    background: white; 
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 91, 187, 0.1);
    overflow: hidden;
}

/* ===== HEADER WITH LOGO ===== */
.enga2z-certificate-container .header { 
    background: linear-gradient(to right, #005bb5, #0077e6); 
    color: white; 
    padding: 20px 15px; 
    text-align: center;
}

.enga2z-certificate-container .logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
}

.enga2z-certificate-container .logo-text {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    word-wrap: break-word;
    text-align: center;
}

.enga2z-certificate-container .header h1 { 
    font-size: clamp(1.2rem, 3vw, 1.8rem); 
    margin-bottom: 8px; 
    color: white;
    line-height: 1.3;
}

.enga2z-certificate-container .header p { 
    font-size: clamp(0.85rem, 2vw, 1rem); 
    color: rgba(255, 255, 255, 0.95); 
    max-width: 100%;
    margin: 0 auto; 
    line-height: 1.5;
    padding: 0 5px;
}

/* ===== MAIN CONTENT ===== */
.enga2z-certificate-container .main-content { 
    padding: 20px 15px; 
    background: white;
}

/* Verification Box */
.enga2z-certificate-container .verify-box { 
    background: #f0f7ff;
    border-radius: 12px; 
    padding: 20px; 
    margin-bottom: 15px; 
    border: 2px solid #c2dfff; 
}

.enga2z-certificate-container .verify-box h2 {
    color: #005bb5;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

.enga2z-certificate-container .input-group { 
    display: flex; 
    flex-direction: column;
    gap: 12px; 
    margin-bottom: 12px; 
}

.enga2z-certificate-container #certificateInput { 
    width: 100%;
    padding: 15px;
    border: 2px solid #99c2ff; 
    border-radius: 8px; 
    font-size: 16px; /* Prevents zoom on iOS */
    color: #1a365d;
    background: white;
    -webkit-appearance: none;
}

.enga2z-certificate-container #certificateInput:focus {
    border-color: #0077e6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 119, 230, 0.2);
}

.enga2z-certificate-container #verifyBtn { 
    width: 100%;
    background: linear-gradient(to right, #ff6b00, #ff8533); 
    color: white; 
    border: none; 
    padding: 15px; 
    border-radius: 8px; 
    font-size: 1rem; 
    font-weight: 600; 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    gap: 8px; 
    transition: all 0.3s;
    -webkit-appearance: none;
    touch-action: manipulation;
}

.enga2z-certificate-container #verifyBtn:active { 
    background: linear-gradient(to right, #e65c00, #ff6b00); 
    transform: scale(0.98);
}

/* Status Messages */
.enga2z-certificate-container #loadingDiv,
.enga2z-certificate-container #errorDiv { 
    display: none; 
    text-align: center; 
    padding: 20px; 
    margin: 12px 0; 
    border-radius: 10px; 
    background: white;
}

.enga2z-certificate-container #loadingDiv { 
    background: #fffaf0; 
    color: #804d00; 
    border: 1px solid #ffd9b3; 
}

.enga2z-certificate-container #errorDiv { 
    background: #fff5f5; 
    color: #b30000; 
    border: 1px solid #fed7d7; 
}

.enga2z-certificate-container .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e6f2ff;
    border-top: 4px solid #0077e6;
    border-radius: 50%;
    margin: 0 auto 15px;
    animation: enga2z-spin 1s linear infinite;
}

@keyframes enga2z-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== CERTIFICATE DISPLAY ===== */
.enga2z-certificate-container #certificateDiv { 
    display: none; 
    border: 2px solid #005bb5; 
    border-radius: 12px; 
    padding: 0; 
    margin-top: 20px; 
    background: white; 
    position: relative; 
    overflow: hidden; 
}

.enga2z-certificate-container .cert-watermark { 
    position: absolute; 
    font-size: clamp(60px, 15vw, 140px); 
    opacity: 0.03; 
    color: #005bb5; 
    font-weight: bold; 
    transform: rotate(-30deg); 
    top: 30%; 
    left: 5%; 
    right: 5%;
    z-index: 0; 
    user-select: none; 
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
}

.enga2z-certificate-container .cert-header { 
    background: linear-gradient(to right, #005bb5, #0077e6); 
    color: white; 
    padding: 20px 15px; 
    text-align: center; 
    border-bottom: 3px solid #ff6b00;
}

.enga2z-certificate-container .cert-header h2 { 
    font-size: clamp(1.4rem, 3vw, 2.2rem); 
    margin-bottom: 8px; 
    line-height: 1.3;
}

.enga2z-certificate-container .cert-header h3 { 
    font-size: clamp(1rem, 2vw, 1.4rem); 
    font-weight: 400; 
    opacity: 0.95; 
}

.enga2z-certificate-container .cert-body { 
    padding: 20px 15px; 
    position: relative; 
    z-index: 1; 
}

.enga2z-certificate-container .cert-text { 
    text-align: center; 
    margin-bottom: 20px; 
}

.enga2z-certificate-container .cert-text p { 
    font-size: clamp(0.95rem, 2vw, 1.1rem); 
    margin: 10px 0; 
    color: #334d6c; 
    line-height: 1.5;
}

.enga2z-certificate-container .student-name { 
    font-size: clamp(1.8rem, 4vw, 2.5rem); 
    color: #005bb5; 
    font-weight: 700; 
    margin: 15px 0; 
    line-height: 1.2; 
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.enga2z-certificate-container .cert-details-grid { 
    display: grid; 
    grid-template-columns: 1fr;
    gap: 12px; 
    background: #f0f7ff; 
    padding: 15px; 
    border-radius: 10px; 
    margin: 20px 0; 
    border: 1px solid #c2dfff;
}

.enga2z-certificate-container .detail-item { 
    padding: 12px 10px; 
}

.enga2z-certificate-container .detail-label { 
    font-weight: 600; 
    color: #005bb5; 
    margin-bottom: 5px; 
    font-size: clamp(0.85rem, 1.8vw, 0.95rem); 
    display: flex; 
    align-items: center; 
    gap: 6px; 
}

.enga2z-certificate-container .detail-value { 
    color: #1a365d; 
    font-size: clamp(0.9rem, 1.9vw, 1rem); 
    font-weight: 500;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.enga2z-certificate-container .cert-footer { 
    text-align: center; 
    padding: 15px; 
    background: #e6f2ff; 
    border-top: 1px solid #99c2ff; 
}

.enga2z-certificate-container .note { 
    font-style: italic; 
    color: #666; 
    font-size: clamp(0.8rem, 1.8vw, 0.9rem); 
    line-height: 1.5; 
    max-width: 100%;
    margin: 0 auto;
}

/* ===== ACTION BUTTONS ===== */
.enga2z-certificate-container .action-buttons { 
    display: none; 
    gap: 10px; 
    justify-content: center; 
    margin-top: 20px; 
    flex-wrap: wrap; 
}

.enga2z-certificate-container .btn { 
    width: 100%;
    padding: 14px 20px; 
    border-radius: 8px; 
    font-weight: 600; 
    cursor: pointer; 
    border: none; 
    font-size: clamp(0.9rem, 2vw, 1rem); 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    gap: 8px; 
    transition: all 0.3s;
    touch-action: manipulation;
}

.enga2z-certificate-container .btn-verify { 
    background: linear-gradient(to right, #ff6b00, #ff8533); 
    color: white; 
}

.enga2z-certificate-container .btn-verify:active { 
    background: linear-gradient(to right, #e65c00, #ff6b00); 
    transform: scale(0.98);
}

/* ===== RESPONSIVE BREAKPOINTS ===== */
@media (min-width: 481px) {
    .enga2z-certificate-container { padding: 15px; }
    .enga2z-certificate-container .header { padding: 25px 20px; }
    .enga2z-certificate-container .main-content { padding: 25px 20px; }
    .enga2z-certificate-container .verify-box { padding: 25px; }
    .enga2z-certificate-container .cert-body { padding: 25px 20px; }
    .enga2z-certificate-container .cert-watermark { font-size: clamp(80px, 12vw, 140px); }
}

@media (min-width: 768px) {
    .enga2z-certificate-container .input-group { 
        flex-direction: row; 
        gap: 15px; 
    }
    .enga2z-certificate-container #certificateInput { 
        width: auto;
        flex: 1;
    }
    .enga2z-certificate-container #verifyBtn { 
        width: auto;
        padding: 15px 30px;
        min-width: 180px;
    }
    .enga2z-certificate-container .cert-details-grid { 
        grid-template-columns: repeat(2, 1fr);
    }
    .enga2z-certificate-container .btn { 
        width: auto;
        min-width: 200px;
    }
}

@media (min-width: 1024px) {
    .enga2z-certificate-container .cert-details-grid { 
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== HOVER EFFECTS (Desktop only) ===== */
@media (hover: hover) and (pointer: fine) {
    .enga2z-certificate-container #verifyBtn:hover { 
        background: linear-gradient(to right, #e65c00, #ff6b00); 
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
    }
    .enga2z-certificate-container .btn-verify:hover { 
        background: linear-gradient(to right, #e65c00, #ff6b00); 
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
    }
}

/* ===== iOS SAFARI FIXES ===== */
@supports (-webkit-touch-callout: none) {
    .enga2z-certificate-container input,
    .enga2z-certificate-container button,
    .enga2z-certificate-container textarea,
    .enga2z-certificate-container select {
        font-size: 16px !important;
    }
    .enga2z-certificate-container {
        -webkit-user-select: none;
        -webkit-tap-highlight-color: transparent;
    }
}

/* ===== ANDROID CHROME FIXES ===== */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    .enga2z-certificate-container select:focus,
    .enga2z-certificate-container textarea:focus,
    .enga2z-certificate-container input:focus {
        font-size: 16px !important;
    }
}